Alopecia Areata: Symptoms, Diagnosis and Treatment

Overview

Alopecia areata is an autoimmune condition that causes hair loss, usually in small, round patches on the scalp, though it can affect hair anywhere on the body. The name says it plainly: "alopecia" means hair loss, and "areata" describes its patchy pattern. Hair loss typically develops over a period of weeks, and some people also notice small pits on their fingernails or toenails.

It affects roughly 1 in every 500 to 1,000 people in the United States, and it affects men and women equally across all ethnic backgrounds. It most often first appears in adolescence or early adulthood, which is part of why it can feel so disorienting when it shows up. In more extensive forms, hair loss can involve the entire scalp (alopecia totalis) or the whole body (alopecia universalis). Many genes are involved, particularly immune system genes, and people with alopecia areata have a higher chance of certain other conditions, including vitiligo, atopic dermatitis, allergic asthma, lupus, and autoimmune thyroid disease (Hashimoto's and Graves').

Alopecia areata can take a real toll on mental health and quality of life, and that impact deserves to be taken as seriously as the hair loss itself. Treatment options have expanded in recent years, including the first oral medicines approved specifically for severe alopecia areata, so it is worth seeing a dermatologist rather than waiting it out alone.

Symptoms

Smooth, round or oval patches of hair loss, most often on the scalp
Hair loss that develops over a period of weeks
Patchy loss in eyebrows, eyelashes, or other body hair
Small pits or dents on the surface of fingernails or toenails
Loss of all scalp hair (alopecia totalis) in some people
Loss of hair across the whole body (alopecia universalis) in some people
Emotional effects such as anxiety, low mood, or reduced quality of life

Diagnosis

Visual exam: a dermatologist looks closely at the pattern of hair loss on your scalp and body, and checks your nails
Dermoscopy: a handheld magnifying tool (dermatoscope) lets the dermatologist examine hairs and follicles in detail
Health history: questions about when the hair loss started, family history, and other autoimmune conditions
Blood tests: sometimes ordered to check thyroid function or nutritional levels that can also affect hair
Scalp biopsy: occasionally used when the diagnosis is unclear

A dermatologist typically makes the diagnosis and guides treatment.

Treatments

Corticosteroid injections: injected directly into patches every 4 to 6 weeks; in studies, more than 80% of people treated had at least half their hair regrow within 12 weeks
Topical corticosteroids: creams or solutions applied once or twice a day; tend to work better in children than adults
Minoxidil: applied 2 to 3 times a day, often used alongside or after other treatments to help maintain regrowth
Contact immunotherapy: a medicine applied in the office weekly to trigger a mild skin reaction; regrowth rates in studies range widely, from 17% to 75%
JAK inhibitors: oral medicines FDA approved for severe alopecia areata: baricitinib (Olumiant, adults, approved 2022), ritlecitinib (Litfulo, ages 12 and older, approved 2023, the first approved option for people under 18), and deuruxolitinib (Leqselvi, adults, approved 2024)
Emotional support: counseling and support groups can help with the anxiety and low mood that often accompany hair loss

Medical Resources

Your Care Plan

A step-by-step guide to navigating your condition, from finding the right doctors to advocating for the care you deserve.

Step 1: Doctors to See

Start with: Your primary care doctor or pediatrician, who can look at the pattern of hair loss and check for other causes.

Then seek: A dermatologist, ideally one with experience treating hair loss, to confirm the diagnosis and discuss treatment options based on how much hair is affected.

Build your team:

Dermatologist: for injections, topical treatments, and deciding whether a JAK inhibitor makes sense
Primary care doctor or endocrinologist: if thyroid testing is abnormal, since autoimmune thyroid disease is more common with alopecia areata
Therapist or counselor: for support with the emotional side of hair loss

Step 2: Advocate for Yourself

Hair loss is often brushed off as stress, and while stress is real, patchy round bald spots deserve a proper look from a dermatologist. If your hair loss is extensive, ask directly whether you are a candidate for one of the FDA-approved JAK inhibitors, and ask what monitoring would be involved. It is also completely reasonable to raise the emotional impact at your appointment: anxiety and low mood are recognized parts of living with alopecia areata, not a side issue, and your care team can connect you with support.

Step 3: Your Action Plan

Take dated photos of any patches so you can track changes over weeks and months.
Note any nail changes, such as small pits, and any other symptoms like skin rashes or thyroid-type symptoms.
Write down your family history of autoimmune conditions, including thyroid disease, vitiligo, and eczema.
See a dermatologist and ask whether a dermoscopy exam or blood tests for thyroid and nutritional levels make sense for you.
Ask which treatment fits the extent of your hair loss, from injections and topicals to JAK inhibitors for severe cases.
Ask about expected timelines, since most treatments take weeks to months to show results.
Look into support resources, such as the National Alopecia Areata Foundation, and consider counseling if hair loss is affecting your mood.

Important: This report is educational information, not medical advice. Always consult a qualified healthcare professional for diagnosis and treatment decisions.