Hair Loss: Causes & When to See a Doctor
Hair loss is common and has many causes — from genetics and hormonal changes to stress, nutritional deficiencies, and scalp conditions. Identifying the pattern and timing helps dermatologists recommend appropriate care.
Hair loss is common and has many causes — from genetics and hormonal changes to stress, nutritional deficiencies, and scalp conditions.
What is hair loss?
Hair loss is common and has many causes — from genetics and hormonal changes to stress, nutritional deficiencies, and scalp conditions.
What causes hair loss?
Androgenetic alopecia (male or female pattern hair loss) is the most common cause in adults. Telogen effluvium — diffuse shedding after stress, illness, or childbirth — often recovers over months.
Thyroid disease, iron deficiency, and certain medicines can contribute. Avoid unproven topical products without professional assessment.
Common symptoms
- Gradual thinning on top of the head (pattern hair loss)
- Circular bald patches (alopecia areata)
- Sudden shedding after illness or stress (telogen effluvium)
- Scalp itching, scaling, or redness with some conditions
When to seek medical care
See a dermatologist for rapid patchy loss, scarring on the scalp, hair loss with scalp pain or rash, or significant thinning affecting confidence. Early treatment of some conditions improves outcomes.
Which doctor treats hair loss?
For hair loss, a dermatologist is often the appropriate starting point. They can examine you, order relevant tests, and refer to another specialist if needed. View available doctors.
How doctors generally evaluate this problem
Dermatologists examine the scalp and hair pattern, review medicines and family history, and may perform blood tests or a scalp biopsy in selected cases to determine the cause.
Frequently asked questions
Which doctor treats hair loss?
A dermatologist specialises in hair and scalp disorders. A general physician can perform initial assessment and blood tests before referral if needed.
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