AGA Guide
AGA treatment options in Japan
A practical guide to oral medication, topical minoxidil, injections, and when to see a doctor.
What AGA means
AGA means androgenetic alopecia, a common pattern of hair loss related to genetics and androgen sensitivity. It usually progresses slowly, so clinics often focus on slowing further loss, improving hair density where possible, and checking whether another condition is causing shedding.
Common medicines
Japanese clinics commonly discuss finasteride or dutasteride to reduce DHT-related progression, and topical minoxidil to support hair growth. Some clinics also offer oral minoxidil, injections, supplements, or hair transplant referrals, but these options require careful explanation of evidence, cost, and risk.
Diagnosis matters
Not all hair loss is AGA. Sudden shedding, patchy hair loss, scalp inflammation, thyroid disease, nutritional deficiency, medication effects, stress, and postpartum changes may require a different approach. Ask whether the clinic will examine the scalp and consider blood tests when symptoms are atypical.
Treatment takes time
AGA treatment is usually evaluated over months, not days. Many clinics explain that continued medication may be needed to maintain results. Before starting, confirm how the clinic will judge progress, what photos or measurements are used, and what happens if side effects appear.
For English and Chinese speakers
If you need English or Chinese, confirm whether support is available for the first consultation, medicine explanation, side-effect questions, receipts, and follow-up visits. This is especially important when long-term medication is involved.