<s>[INST] Hi there, I have a 3 year old daughter who is potty trained but wears a nappy at night. Tonight while putting cream on after her bath I discovered a black mark on her Peritoneum. About the size of a small mole, it doesn t seem to sit on the skin but almost seems right under the surface. It is not perfectly round. It isn t sore or itchy. My mom said she noticed it a couple of weeks ago but because of the position I have no clue how long it has been there. Is this something I should get checked out or am I over reacting? Thank you [/INST] Hi... By what you quote and also as the baby is not being bothered by it, I don't think it is a major problem. But, skin conditions are best diagnosed only after seeing directly. I suggest you to upload photographs of the same on this website, so that I can guide you scientifically. Hope my answer was helpful for you. I am happy to help any time. Further clarifications and consultations on Chat Doctor are welcome. If you do not have any clarifications, you can close the discussion and rate the answer. Wish your kid good health. </s>