Hair loss can be caused by genetics (male pattern baldness), hormonal changes, medical conditions, medications, stress, and certain hair treatments or styling practices. Male pattern baldness, the most common cause, is related to genetics and male hormones.

Oral medications work by blocking the conversion of testosterone to DHT, a hormone that contributes to hair loss. Topical treatments work by increasing blood flow to the hair follicles and prolonging the growth phase of hair.

Most hair loss treatments require at least 3-6 months of consistent use before noticeable results. Full results typically take 12 months or longer. It's important to be patient and consistent with treatment.

Oral medications may cause sexual side effects in a small percentage of men, including decreased libido and erectile dysfunction. Topical treatments may cause scalp irritation, unwanted hair growth elsewhere on the body, or initial shedding. Most side effects are mild and temporary.

Yes, combining oral and topical treatments can be more effective than using either treatment alone. They work through different mechanisms, so they can complement each other for better results.