question: Hello doctor, My height is 182 cm and my weight is 87 kg. I am a fair-skinned person. I have dark skin patches on my elbows,neck,underarms, groin area, and on the buttocks. I have been aware of this condition for the last six years. I was thinking there was nothing serious. I also have dark circles under my eyes and some unusual pigmentation on my face with acne. Tests for diabetes were negative and the insulin test was normal too. My father also suffers from the same condition. Kindly advise me as to what should I do.