Autoimmune diseases that cause hair loss range from conditions that directly attack the hair follicle, such as alopecia areata, to systemic diseases like lupus and autoimmune thyroid disorders that affect the body more broadly. Hair loss can be one of the most distressing and visible features of these conditions, yet it is often underrecognised or attributed to other causes. Understanding which autoimmune diseases are involved, how they disrupt hair growth, and what treatment options are available on the NHS can help patients seek timely assessment and appropriate care. This article outlines the key conditions, diagnostic approaches, and management strategies relevant to UK patients.
Summary: Autoimmune diseases that cause hair loss include alopecia areata, systemic and discoid lupus erythematosus, autoimmune thyroid disorders, lichen planopilaris, and frontal fibrosing alopecia, each affecting hair follicles through different immune-mediated mechanisms.
- Alopecia areata is the most common autoimmune disease directly targeting hair follicles, causing patchy or extensive hair loss that may be reversible in many cases.
- Scarring alopecias — including discoid lupus, lichen planopilaris, and frontal fibrosing alopecia — cause irreversible follicle destruction if not treated promptly.
- Systemic lupus erythematosus (SLE) includes non-scarring alopecia as a recognised classification criterion under EULAR/ACR 2019 guidelines.
- Autoimmune thyroid disorders (Hashimoto's thyroiditis and Graves' disease) cause diffuse hair thinning due to disrupted thyroid hormone levels, which often improves with treatment.
- Baricitinib (Olumiant) is MHRA-approved and available on the NHS for severe alopecia areata in eligible adults following NICE technology appraisal TA885 (2023).
- Hair loss in autoimmune conditions may result from the disease itself, associated nutritional deficiencies, or side effects of immunosuppressive medications — a thorough clinical assessment is essential.
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Which Autoimmune Diseases Can Cause Hair Loss?
Alopecia areata, systemic and discoid lupus erythematosus, autoimmune thyroid disorders, lichen planopilaris, and frontal fibrosing alopecia are the most common autoimmune diseases causing hair loss, ranging from reversible shedding to permanent follicle destruction.
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Hair loss is a recognised feature of several autoimmune conditions, ranging from those that target the hair follicle directly to systemic diseases that affect the body more broadly. Understanding which conditions are involved can help patients and clinicians identify the underlying cause more efficiently.
The most well-known autoimmune disease directly associated with hair loss is alopecia areata, in which the immune system mistakenly attacks hair follicles, causing patchy or extensive hair shedding. In more severe forms — alopecia totalis (complete scalp hair loss) and alopecia universalis (loss of all body hair) — the impact can be profound.
Other autoimmune conditions commonly linked to hair loss include:
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Systemic lupus erythematosus (SLE): Hair thinning or shedding is a recognised manifestation of SLE and may be diffuse or patchy. Under the EULAR/ACR 2019 classification criteria, non-scarring alopecia is included as a classification criterion.
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Discoid lupus erythematosus (DLE): A skin-limited form of lupus that can cause scarring alopecia if scalp lesions are left untreated. Early dermatology review is important to prevent permanent follicle loss.
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Primary scarring alopecias — lichen planopilaris (LPP) and frontal fibrosing alopecia (FFA): These autoimmune-mediated conditions cause progressive, irreversible destruction of hair follicles. Early recognition and prompt dermatology referral are essential, as treatment can slow or halt progression but cannot restore already-lost hair.
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Hashimoto's thyroiditis and Graves' disease: Autoimmune thyroid disorders frequently cause diffuse hair thinning due to disrupted thyroid hormone levels.
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Sjögren's syndrome and rheumatoid arthritis: Diffuse hair thinning can occur in these conditions, though the association is less direct and may be related to systemic inflammation or medications used in treatment rather than the disease process alone.
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Dermatomyositis: An inflammatory muscle disease that can also affect the skin and scalp, occasionally leading to hair loss.
It is important to note that hair loss in autoimmune disease may result from the condition itself, from associated nutritional deficiencies, or as a side effect of immunosuppressive treatments. A thorough clinical assessment is needed to identify the primary cause.
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| Autoimmune Condition | Type of Hair Loss | Mechanism | Scarring? | Key NHS Treatment |
|---|---|---|---|---|
| Alopecia Areata (incl. totalis/universalis) | Patchy to complete scalp or body hair loss | T-lymphocytes attack hair follicles, disrupting anagen phase | No — regrowth possible | Topical/intralesional corticosteroids; baricitinib (NICE TA885) for severe disease |
| Systemic Lupus Erythematosus (SLE) | Diffuse or patchy, non-scarring thinning | Systemic inflammation; telogen effluvium; disease activity | No (typically) | Hydroxychloroquine; requires regular retinal screening (RCOphth guidance) |
| Discoid Lupus Erythematosus (DLE) | Patchy scarring alopecia at scalp lesion sites | Chronic skin inflammation permanently damages follicles | Yes — irreversible if untreated | Topical steroids, hydroxychloroquine, sun protection; prompt dermatology referral essential |
| Lichen Planopilaris & Frontal Fibrosing Alopecia | Progressive, patterned scarring hair loss | Autoimmune-mediated follicular destruction | Yes — irreversible | Early dermatology referral; treatment slows progression but cannot restore lost hair |
| Hashimoto's Thyroiditis / Graves' Disease | Diffuse shedding across scalp | Disrupted thyroid hormones alter follicle metabolic environment | No — often reversible | Levothyroxine (hypothyroidism) or carbimazole (hyperthyroidism); hair recovery over months |
| Rheumatoid Arthritis / Sjögren's Syndrome | Diffuse thinning | Systemic inflammation; possible medication side effects (e.g. methotrexate) | No | Treat underlying disease; review medications with prescribing clinician before stopping |
| Dermatomyositis | Scalp and diffuse hair loss | Inflammatory skin and muscle disease affecting scalp | Rarely | Managed by rheumatology/dermatology; immunosuppressive therapy for underlying disease |
How Autoimmune Conditions Affect Hair Growth and Loss
Autoimmune conditions disrupt hair growth by triggering immune attack on follicles, inducing telogen effluvium through systemic inflammation, causing nutritional deficiencies, or as a side effect of immunosuppressive medications.
To understand why autoimmune diseases cause hair loss, it helps to appreciate the normal hair growth cycle. Hair follicles cycle through phases of active growth (anagen), transition (catagen), and rest (telogen). Disruption to any of these phases — whether through immune attack, inflammation, hormonal imbalance, or nutritional deficiency — can result in shedding or reduced regrowth.
In alopecia areata, T-lymphocytes (a type of white blood cell) infiltrate the hair follicle and disrupt the anagen phase. The follicle is not permanently destroyed in most cases, which is why regrowth remains possible. However, in scarring alopecias such as those caused by discoid lupus, lichen planopilaris, or frontal fibrosing alopecia, chronic inflammation can permanently damage the follicle, making regrowth unlikely without early intervention.
In systemic autoimmune diseases such as SLE or rheumatoid arthritis, hair loss tends to be diffuse rather than patchy. This is often driven by:
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Systemic inflammation, which can push follicles prematurely into the telogen (resting) phase — a process known as telogen effluvium.
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Nutritional deficiencies, particularly iron, vitamin D, zinc, and B12, which may occur in some autoimmune conditions depending on the disease, diet, and any associated malabsorption. Targeted testing is recommended rather than routine supplementation without assessment.
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Medications such as methotrexate and certain biologics, which uncommonly list hair loss as an adverse effect. Hydroxychloroquine can very rarely cause hair changes, though it is also used therapeutically to treat lupus-related hair loss.
If you are concerned that a prescribed medicine may be contributing to hair loss, do not stop taking it without speaking to your prescribing clinician first, as stopping immunosuppressants or disease-modifying drugs without medical supervision can cause serious harm. Your healthcare team can review your treatment regimen and discuss any concerns. Suspected side effects from medicines can be reported to the MHRA via the Yellow Card scheme at yellowcard.mhra.gov.uk.
Autoimmune thyroid disease affects hair differently: both hypothyroidism (underactive thyroid) and hyperthyroidism (overactive thyroid) can cause diffuse shedding by altering the metabolic environment that hair follicles depend upon. Correcting thyroid hormone levels with appropriate treatment often leads to gradual hair recovery.
Diagnosing Autoimmune-Related Hair Loss in the UK
Diagnosis begins with a GP assessment including blood tests such as FBC, ferritin, and thyroid function tests, with specialist referral — particularly to dermatology — recommended when scarring alopecia is suspected.
Diagnosing the cause of hair loss in the context of autoimmune disease requires a structured clinical approach. In the UK, initial assessment typically begins with a GP, who will take a detailed history, examine the pattern and extent of hair loss, and arrange relevant investigations.
Key investigations may include:
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Core blood tests: Full blood count (FBC), ferritin, and thyroid function tests (TFTs) are commonly requested as a first step, in line with NICE CKS guidance on alopecia.
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Additional tests guided by clinical suspicion: Vitamin D, B12, folate, and inflammatory markers (ESR, CRP) may be added where the history or examination suggests deficiency or systemic inflammation. Autoimmune-specific tests — such as antinuclear antibodies (ANA), anti-dsDNA, and thyroid peroxidase antibodies — are requested when an underlying autoimmune condition is suspected rather than routinely.
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Scalp examination: A dermatologist may use dermoscopy of the hair and scalp (also called trichoscopy) — a non-invasive technique — to assess follicle health, identify signs of scarring, and differentiate between types of alopecia. Trichoscopy is dermoscopy applied specifically to the hair and scalp; it is not a separate investigation.
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Scalp biopsy: In cases where scarring alopecia or an unclear diagnosis is suspected, a small skin biopsy may be taken for histological analysis. This is particularly important in discoid lupus, lichen planopilaris, and frontal fibrosing alopecia to assess the degree of follicular damage.
NICE CKS guidance and NHS pathways recommend that patients with suspected systemic autoimmune disease are referred to the appropriate specialist — typically a rheumatologist, dermatologist, or endocrinologist — depending on the clinical picture. Prompt dermatology referral is especially important when a scarring alopecia is suspected, as early treatment can prevent irreversible follicle loss. Patients should be aware that reaching a definitive diagnosis may take time, as autoimmune conditions can present with overlapping features.
Treatment Options Available on the NHS
NHS treatment depends on the underlying condition and includes corticosteroids, topical immunotherapy, and baricitinib for alopecia areata, hydroxychloroquine for lupus-related hair loss, and thyroid hormone optimisation for thyroid-related shedding.
Treatment for autoimmune-related hair loss on the NHS depends on the underlying condition, the type and extent of hair loss, and whether the alopecia is scarring or non-scarring. Management is generally coordinated between the GP and relevant specialists.
For alopecia areata, options used in NHS practice include:
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Topical or intralesional corticosteroids to suppress the localised immune response. These are commonly used in mild-to-moderate disease. Oral corticosteroids may be considered in selected cases of severe or rapidly progressing alopecia areata, but their use is typically short-term or as a bridging measure under specialist supervision, given the risk of relapse on withdrawal and potential adverse effects with prolonged use.
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Topical immunotherapy (e.g., diphencyprone), available in specialist dermatology centres, which works by inducing a controlled allergic reaction to redirect immune activity away from the follicle.
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Baricitinib (Olumiant), a JAK1/JAK2 inhibitor, has received MHRA approval and is available on the NHS for severe alopecia areata in eligible adults, following NICE technology appraisal (TA885, 2023). Eligibility criteria apply; patients should discuss with their dermatologist whether this treatment is appropriate for them. As with all medicines, baricitinib carries risks and requires monitoring — full safety information is available in the MHRA-approved Summary of Product Characteristics (SmPC). Do not stop this or any prescribed treatment without medical advice.
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Minoxidil (topical) is licensed for androgenetic alopecia and may be used off-label as an adjunct in alopecia areata to support hair regrowth, though it does not address the underlying autoimmune process. Oral minoxidil is also used off-label for hair disorders in specialist settings; patients should be aware of its off-label status and the importance of specialist oversight and appropriate monitoring.
For lupus-related hair loss, hydroxychloroquine is a cornerstone treatment that reduces systemic inflammation and can improve hair loss in SLE. Topical steroids and sun protection are important in discoid lupus to prevent scarring progression. Patients taking hydroxychloroquine require regular retinal screening in line with Royal College of Ophthalmologists (RCOphth) guidance, as long-term use carries a risk of retinopathy. Full safety information is available in the hydroxychloroquine SmPC.
For thyroid-related hair loss, optimising thyroid hormone replacement (levothyroxine for hypothyroidism) or antithyroid treatment (carbimazole for hyperthyroidism) is the primary intervention, with hair recovery typically occurring over several months. Patients taking carbimazole should be aware of the rare but serious risk of agranulocytosis and should seek urgent medical attention if they develop a sore throat, mouth ulcers, or fever.
Nutritional deficiencies identified on blood testing should be corrected with appropriate supplementation, as this can meaningfully support hair regrowth alongside disease-specific treatment.
If you experience any suspected side effects from your medicines, report them to the MHRA via the Yellow Card scheme at yellowcard.mhra.gov.uk.
Managing Hair Loss Alongside an Autoimmune Condition
Management combines gentle hair care, scalp sun protection, nutritional support, and psychological resources such as NHS Talking Therapies and charities including Alopecia UK and Lupus UK.
Living with hair loss in the context of an autoimmune condition presents both physical and psychological challenges. A holistic approach to management — addressing not only the medical aspects but also the emotional and practical impact — is essential for overall wellbeing.
Practical self-care strategies include:
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Gentle hair care: Avoiding excessive heat styling, tight hairstyles, and harsh chemical treatments can reduce additional mechanical stress on fragile hair.
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Scalp protection: For those with active scalp inflammation or discoid lupus lesions, using high-factor sun protection on the scalp and wearing hats outdoors is recommended, in line with British Association of Dermatologists (BAD) sun protection guidance.
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Nutritional support: Eating a balanced diet rich in iron, protein, zinc, and vitamins supports hair follicle health. Patients with malabsorption or restricted diets should discuss targeted testing and supplementation with their GP or dietitian, rather than taking supplements without assessment.
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Wigs and hairpieces: The NHS may provide a wig voucher for patients with significant hair loss due to a medical condition, including alopecia areata. Provision and eligibility vary across integrated care boards (ICBs) in England and across the devolved nations; patients should enquire with their GP or dermatology team, or visit the NHS 'Wigs and fabric supports' information page for further guidance.
The psychological impact of hair loss should not be underestimated. Studies consistently show that hair loss — particularly when extensive or unpredictable — can significantly affect self-esteem, body image, and mental health. Patients are encouraged to seek support through:
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NHS Talking Therapies for anxiety and depression (available in England; equivalent services exist in Scotland, Wales, and Northern Ireland) for anxiety or low mood related to hair loss or chronic illness.
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Alopecia UK, a patient charity offering peer support, information, and advocacy for those affected by all forms of alopecia.
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Lupus UK and other condition-specific charities for broader autoimmune disease support.
Open communication with the healthcare team about the emotional burden of hair loss is important, as psychological support can be integrated into the overall care plan.
When to See Your GP or a Specialist
Seek prompt GP assessment for sudden, rapidly progressing, or scarring hair loss, or if hair loss is accompanied by systemic symptoms such as fatigue, joint pain, or skin rashes that may indicate an underlying autoimmune condition.
Knowing when to seek medical advice is important for anyone experiencing hair loss, particularly if an autoimmune condition is already diagnosed or suspected. Early assessment can make a meaningful difference, especially in conditions where scarring may occur.
You should contact your GP promptly if you notice:
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Sudden or rapidly progressing hair loss, whether patchy or diffuse.
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Hair loss accompanied by other symptoms such as fatigue, joint pain, skin rashes (particularly a butterfly-shaped rash across the cheeks), mouth ulcers, or unexplained weight changes — all of which may suggest an underlying systemic autoimmune condition.
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Scalp redness, scaling, tenderness, or scarring, which may indicate an inflammatory or scarring alopecia (such as lichen planopilaris or frontal fibrosing alopecia) requiring prompt dermatology review to prevent irreversible follicle loss.
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Hair loss that begins or worsens after starting a new medication. Do not stop any prescribed medicine without first speaking to your clinician, as this can be harmful. Your prescribing team can review your regimen and advise appropriately. Suspected adverse drug reactions can be reported via the MHRA Yellow Card scheme at yellowcard.mhra.gov.uk.
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Significant emotional distress related to hair loss, which merits discussion and appropriate support.
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In children, patchy scalp hair loss with scaling or broken hairs may suggest tinea capitis (scalp ringworm), which requires urgent assessment and systemic antifungal treatment to prevent scarring and reduce transmission.
If you already have a diagnosed autoimmune condition and develop new or worsening hair loss, inform your specialist at your next appointment or contact their team sooner if the change is rapid. For those without a prior diagnosis, the GP will assess whether referral to a dermatologist, rheumatologist, or endocrinologist is appropriate based on the clinical findings.
It is worth noting that not all hair loss in people with autoimmune conditions is directly caused by the disease itself — other common causes such as androgenetic alopecia, iron deficiency, or stress-related telogen effluvium may coexist and require separate management. A thorough clinical evaluation ensures that all contributing factors are identified and addressed appropriately.
Frequently Asked Questions
Can autoimmune diseases cause permanent hair loss?
Some autoimmune diseases, such as discoid lupus, lichen planopilaris, and frontal fibrosing alopecia, can cause permanent hair loss by permanently destroying hair follicles through chronic inflammation. In contrast, alopecia areata and hair loss related to systemic lupus or thyroid disorders is often non-scarring, meaning regrowth is possible with appropriate treatment.
Is hair loss from autoimmune disease different from normal hair loss?
Autoimmune-related hair loss is typically driven by immune system dysfunction, inflammation, or hormonal disruption rather than the gradual follicle miniaturisation seen in common androgenetic alopecia. It may present as patchy loss, diffuse thinning, or scalp inflammation, and is often accompanied by other symptoms of the underlying condition.
Can my medication for an autoimmune condition be causing my hair loss?
Some immunosuppressive medications, including methotrexate and certain biologics, can uncommonly cause hair loss as a side effect. Do not stop any prescribed medicine without speaking to your clinician first, as this can be harmful — your healthcare team can review your regimen and advise on alternatives if needed.
What is the difference between alopecia areata and lupus-related hair loss?
Alopecia areata is caused by the immune system directly attacking hair follicles, typically producing well-defined patchy hair loss, whereas lupus-related hair loss is usually diffuse thinning driven by systemic inflammation or, in discoid lupus, scarring scalp lesions. The two conditions require different treatments and have different prognoses for hair regrowth.
How do I get referred to a dermatologist for autoimmune hair loss on the NHS?
Your GP can refer you to an NHS dermatologist if your hair loss pattern, scalp examination, or blood test results suggest an autoimmune or inflammatory cause. Prompt referral is particularly important if a scarring alopecia is suspected, as early treatment can prevent irreversible follicle loss.
Can treating the underlying autoimmune condition reverse hair loss?
In non-scarring conditions such as alopecia areata, SLE, and autoimmune thyroid disease, effective treatment of the underlying condition can lead to significant or complete hair regrowth over time. However, in scarring alopecias such as discoid lupus or lichen planopilaris, treatment can halt progression but cannot restore hair that has already been permanently lost.
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