<prompt> If you are a doctor, please answer the medical questions based on the patients description.My belly button has been hurting when I went to unbotton my pants due to pain, it was bloody then oozing clear. Is it an umbilical hernia? Or just infection? I also currently have a bladder infection which I get all the time due to institial cystitis?  <response>: Thanks for asking in Chat Doctor Forum In Short: Umbilical granulomaoomphalitis can cause thisExplanation: Bloody discharge from umbilicus points towards infection or infected granuloma. Sometimes persistent Uranuspersistent connection between bladder and umbilicus in fetal period can cause frequent discharge from umbilicus. So, visit a surgeon to get yourself checked for this. Hope you have contacted doctor for your cystitis to get treated. Good luck. 