Does finasteride treatment treat male pattern hair loss?

Male pattern hair loss, also called androgenetic alopecia, develops when genetically susceptible follicles respond to dihydrotestosterone. Finasteride reduces production of that hormone from testosterone. This may slow ongoing miniaturisation, preserve hairs that are still growing, and improve the apparent thickness of some areas. It is not a cure and does not produce the same response in every person.

Hair cycles move slowly, and the benefit is linked to continued treatment. A clinician should still confirm the diagnosis because sudden shedding, patchy baldness, scalp inflammation, or scarring suggests another process that needs a different plan.

Before prescribing, your clinician may review the distribution of loss, scalp appearance, family history, medicines, and general health. Explain fertility or pregnancy plans, mood history, sexual symptoms, liver problems, and breast symptoms. Follow the prescribed instructions, avoid sharing tablets, and keep review appointments. Consistent photographs under similar lighting can help compare change more reliably than day-to-day mirror checks.

Seek prompt evaluation for rapidly developing loss, sharply outlined patches, scalp pain, redness, scaling, pustules, sores, or scarring. While using finasteride, contact the prescriber about mood changes, persistent sexual side effects, breast tenderness or a lump, allergic swelling, or breathing difficulty. Urgent symptoms require immediate care rather than waiting for the next hair review.

Ask how confident the diagnosis is, what improvement or preservation is realistic, and when response will be reviewed. Discuss alternatives, pregnancy precautions, possible adverse effects, monitoring, and what would indicate that another scalp condition is present.