Welcome to HealthcareMagic forum.
There are various reasons for loosing hair ,but as we are concerned with maintaining hair and increase the growth of hair we would not discuss it over here.
You can take homeopathic
medicine carcinosin 1M 1 dose of 4 tabs ,followed by arnica 30 4 tabs 4 times in a day for 15 days and report back afterwards.
Hope this helps to clear your complaint,
Wish you speedy recovery ,