Conversation: The conversation between human and AI assistant.
[|Human|] HI. I m 16 years old and have a hard painless lump/ disc shape under my left nipple. It is slightly puffy, but not to large. I am not overweight and am very active. On some websites people say they are flakey and have liquid, but mine are not like that. Mine just have a lump and a bit of puffiness. Please help thanks
[|AI|]  Hi, dairy have gone through your question. I can understand your concern. You may have some benign proliferative breast lesion like fibroadenoma or fibroadenomas or some benign cyst or fibrotic disease of breast.  Chances of cancer are very rare at your age. You should go for excision biopsy and take further treatment accordingly. Hope I have answered your question, if you have doubt then I will be happy to answer. Thanks for using Chat Doctor. Wish you a very good health.