Hello, there can be many reasons behind it like mental worries, nutritional deficiency, hereditary and anaemia. Take homoeopathic medicine lycopodium 30 (4 drops in little amount of water) twice a day for 15 days and update. Apply jobarandi hair oil. *make a habit of 8-10 glasses of water daily. *eat healthy and balanced food like pulses, green leafy vegetables, fresh fruits and nuts etc. *eggs as it is loaded with essential nutrients such as proteins, vitamin b12, iron, zinc and omega 6 fatty acids in large amount. *add more vitamin rich food to your diet. *avoid stress and anger. *cut down the use of hair spray, hair gel. *take a sound sleep. *avoid too much exposure of your hair to sunlight. *avoid hot hair styling tools, as they damage hair and cause split ends.