Alopecia areata is an autoimmune condition in which the body's immune system mistakenly attacks healthy hair follicles, causing hair to fall out in small, often circular patches. It can affect the scalp, eyebrows, eyelashes, beard, and, in more severe cases, the entire body. Unlike many other forms of hair loss, the follicles themselves are not destroyed, which means regrowth is possible — though unpredictable.
What causes alopecia areata?
The condition is classified as an autoimmune disorder. Genetic factors play a significant role: people with a family history of alopecia areata, or of related autoimmune conditions such as thyroid disease or vitiligo, carry a higher risk. Environmental triggers — including prolonged stress, viral infections, and certain medications — may activate the condition in those who are genetically predisposed.
Hair follicles enter a dormant state rather than being permanently damaged. This is why spontaneous regrowth occurs in many cases, though the hair may fall out again during subsequent episodes.
What are the symptoms of alopecia areata?
The most recognisable symptom is one or more smooth, coin-sized bald patches on the scalp. These patches typically appear suddenly, without any inflammation or scarring. Some people notice itching or a mild burning sensation before the patches form. In a small proportion of cases, the condition progresses to alopecia totalis (complete loss of scalp hair) or alopecia universalis (loss of all body hair).
- Patchy alopecia: the most common form, involving one or several round patches
- Alopecia totalis: complete scalp hair loss
- Alopecia universalis: total loss of hair across the entire body
- Diffuse alopecia areata: sudden, widespread thinning rather than distinct patches
- Ophiasis: hair loss in a band pattern along the sides and back of the scalp
How is alopecia areata diagnosed?
A dermatologist can typically diagnose the condition through a clinical examination. A "pull test" — gently tugging a small cluster of hairs — helps assess how actively hair is shedding. In some cases, a scalp biopsy or blood tests may be ordered to rule out other autoimmune conditions or nutritional deficiencies. Dermoscopy, which uses a magnifying instrument to examine the scalp closely, has become a standard part of the diagnostic process.
What treatment options are available?
There is no single cure for alopecia areata, but several approaches can encourage regrowth or slow further loss. Treatment suitability depends on the extent of hair loss, the patient's age, and how long the condition has been active.
- Corticosteroid injections: injected directly into bald patches, this is one of the most common first-line treatments for adults with limited patchy loss
- Topical corticosteroids: creams or ointments applied to affected areas, often used for children
- Minoxidil: a topical solution that may support regrowth when combined with other therapies
- Contact immunotherapy (DPCP): a specialised treatment used in clinics for more extensive hair loss
- JAK inhibitors: a newer class of oral medications that has shown significant results in clinical trials for severe cases
- Platelet-rich plasma (PRP) therapy: an emerging option being studied for its potential to stimulate follicle activity
Outcomes vary considerably between individuals. Regrowth, when it occurs, may take several months, and recurrence is common. Psychological support — through counselling or peer support groups — is an important part of managing a condition that can affect self-image and wellbeing.
What is the Ayurvedic perspective on alopecia areata?
Traditional Ayurvedic medicine, which has deep roots in Sri Lanka's healing culture, refers to conditions resembling alopecia areata under terms such as Indralupta or Khalitya. Practitioners attribute hair loss to imbalances in the three doshas — primarily Pitta and Vata — and recommend treatments that address both the scalp and internal constitution.
Herbal formulations are central to the Ayurvedic approach. Plants such as Pongamia pinnata (known locally as karanda) have traditionally been used in oil preparations applied to the scalp to nourish follicles and reduce inflammation. Preparations like Yogaraja Guggulu and Kaishore Guggulu are prescribed in classical Ayurvedic texts to support conditions involving autoimmune and inflammatory components.
Dietary recommendations typically emphasise cooling, anti-inflammatory foods, reduced intake of spicy or sour items, and adequate sleep. Stress management through yoga and meditation is considered equally important.
It should be noted that while Ayurvedic approaches are widely used and are culturally significant, robust clinical evidence for their efficacy in alopecia areata specifically remains limited. Anyone considering Ayurvedic treatment should do so under the supervision of a qualified practitioner and in conjunction with, not as a replacement for, conventional medical care.
Can lifestyle changes help manage alopecia areata?
Although lifestyle changes cannot reverse the underlying autoimmune process, they may help reduce trigger episodes and support overall hair health. Managing chronic stress through regular exercise, adequate sleep, and mindfulness practices is commonly recommended. A balanced diet rich in iron, zinc, biotin, and vitamin D addresses nutritional deficiencies that can compound hair loss. Avoiding harsh chemical treatments, tight hairstyles, and excessive heat on fragile regrowth areas also helps protect recovering follicles.
Is alopecia areata contagious or permanent?
Alopecia areata is not contagious — it cannot be passed from one person to another through contact. In many cases it is not permanent: spontaneous regrowth occurs in a significant proportion of patients, particularly those with limited patchy loss. However, predicting individual outcomes remains difficult, and some people experience recurring cycles of hair loss and regrowth over many years. Early diagnosis and consistent treatment monitoring give the best chance of sustained regrowth.
