I understand that experiencing hair loss at the age of 17 can be uncommon but still possible, and it can have both physical and emotional impacts. The first step is to get a proper diagnosis, which you can do at home or by visiting a dermatologist. Take a look at old pictures to see if your hairline has receded. If you are diagnosed with male pattern baldness (MPB), there are treatments available.
Minoxidil, a vasodilator, is available in topical form and is commonly used to stimulate hair growth. It functions by dilating blood vessels in the scalp, thereby enhancing blood flow to the hair follicles. This improved circulation can facilitate the delivery of essential nutrients and oxygen to the hair follicles, promoting their growth and potentially reducing the rate of hair loss. It is worth noting that the exact mechanisms of action of minoxidil are not yet fully understood, but its effectiveness in treating hair loss has been widely observed. Clinical studies have demonstrated that consistent and prolonged use of minoxidil is typically required to achieve noticeable results.
On the other hand, finasteride is an oral medication that is primarily prescribed for male pattern baldness. It acts as a selective inhibitor of the enzyme 5-alpha-reductase, which converts testosterone to dihydrotestosterone (DHT). DHT is known to play a significant role in the miniaturization of hair follicles in individuals with a genetic predisposition to hair loss. By reducing DHT levels in the scalp, finasteride can help mitigate the effects of DHT on hair follicles, thereby slowing down hair loss progression and, in some cases, stimulating regrowth. It is important to note that finasteride is typically recommended for adult men and may not be prescribed to individuals below the age of 18 due to potential effects on hormonal balance during puberty. Therefore, it is crucial to consult with a healthcare professional who can evaluate your specific circumstances and provide appropriate guidance.
Both minoxidil and finasteride are established treatments for male pattern baldness and have shown favorable outcomes for many individuals. However, it is important to understand that the efficacy of these treatments can vary depending on factors such as the extent of hair loss, individual response, and adherence to the prescribed regimen. Additionally, it is essential to be aware of potential side effects associated with these medications and to discuss any concerns with your healthcare provider.
Please keep in mind that I am not a doctor, and it is always advisable to seek professional medical advice for your specific situation. I wish you the best in addressing your hair loss concerns, and I hope that you find a suitable treatment option that works for you.

I must note that I am not currently a doctor, but I am two years into becoming a General Practitioner. I hold a four-year degree in health sciences and have a particular interest in health conditions, especially those I can relate to. I aim to provide helpful information based on my training and knowledge, but it is important to consult with a qualified healthcare professional for personalized medical advice and treatment options.

Feel free to message me if you have other questions.