Hi.....
Hair straightening can increase your hair fall.A part from this many other reason like endocrinal abnormalities, street, lack of antioxidants, balanced diet,
vitamin deficiency, anemia ect ;can cause hair fall.many treatment options are available like minoxidil; PRP, lasers, mesotherapies n other. Identifying underlying cause n treating appropriately is important. Dermatologist ll help you in this regard.