<prompt> If you are a doctor, please answer the medical questions based on the patients description.My son aged 26 is having white patches on head ,and so white hair at these places only on head 2-3 places for last 4-5 years .Treatment ???  <response>: Hi! Varughese, Welcome To Chat Doctor forum, White patches with white hair over it indicates VITILIGO. This is an autoimmune condition where in our own cell destroy our melanocytes color producing cells, thus leading to white patches. Treatment depends on whether the lesions are activespreading or stablenot spreading. If the lesion is spreading then we put the patient on oral steroids to stop the activity. Along with this one has to start phototherapy also. There are two types of phototherapy : one is PVA therapy and other is NARROW BAND UVB therapy. These are light chambers which patient has to expose to. This would help in repigmentation. Apart from this one has to apply topical creams too. Vitiligo is a chronic problem and presence of white hair delays the process of repigmentation. So consult a dermatologist who has above facilities. Regards, Chat Doctor. 