Causes of hair loss/thinning of hair are:
1. Environmental factors
3. Deficiency of certain minerals, vitamins & amino acids in diet. e.g. Iron, zinc, Vit B complex, lysine.
4. Hormonal factors. e.g. Testosterone
5. Any incidence of surgery, shock, etc.
1. Treating the underlying cause
2. Avoidance of stress
3. Dietary modifications
solution to be applied locally to stimulate the hair follicles
& multi mineral supplementation
But these medications have to be used regularly under the guidance of a Dermatologist
...as hair loss tends to return on stoppage of these medications.
There is nothing to worry...your hair fall will be controlled.
Wishing you a Good Health.
Let me know if I need to clarify further.
Thanks & take care.