Hello doctor,I have noticed a black spot or patch on the abdomen while taking bath. I want to take your opinion on this. What kind of spot is it? Is it age spot or mole or something else? I am a 39-year-old male and I take medicines for BP and thyroid as well for quite long. I am attaching pictures. Please have a close look at it and suggest me what to do in your opinion.
Hi, Welcome to Chat Doctor forum. I saw your picture (attachment removed to protect patient identity), need some more clear pictures. By the picture, it is a simple melanocytic naevus. No need to worry. Keep it under observation for every six months by taking a photograph and comparing it.  It is very very rare for your skin type for a mole to convert into dysplastic (cancerous) mole. If you notice any changes in the mole then we can plan a biopsy for visualizing internal changes. Otherwise, no further treatment is required as of now. For more information consult a dermatologist online 