Hair fall can be due to many reasons ranging from a physical or mental stress to nutritional deficiencies and local inflammation in the scalp. You should visit a dermatologist to get your scalp checked. You can try to maintain a healthy lifestyle with balanced diet and use mild sulphate free shampoos on a regular basis to improve the condition of your hair. In case you have had a recent illness, surgery or stress, hair fall can sometimes stop on its own once the cause is no longer there. If you also have hair thinning, the is, the hair which is growing back is thin or weak, long term treatments like minoxidil application or multiple sessions of platelet rich plasma therapy can also be recommended by your doctor.