You seem to be having a balding scalp, this may be linked to male pattern baldness. Male pattern baldness is generally caused due to genetics, poor nutrition, smoking, mental stress, low water intake, poor sleep, and medications.
If you're unsure of the exact cause of your conditions, you must visit a functional medicine doctor. The doctor uses a science-based approach to discover the root cause of a problem, he/she will not only look at your symptoms but will examine your whole body to discover what's really going on.
Still, there are some things you can do to manage the situation. This involves:
1. Using DHT blockers
2. Taking hair vitamins
3. Using holistic hair products with fewer chemicals
Let me know if this helps!
Thanks!