<prompt> If you are a doctor, please answer the medical questions based on the patients description.When I sit down on the toilet it feels like a very small sackbumplump protrudes from my anus. But when I relax or stand up it goes away. I do not have any burning or itching. Once in a great while there might be a little blood on the toilet paper, but I figure its just because its winter and my skin is dry andor Im wiping too much. Is this bumplumpsack a normal part of human anatomy, or do I have a problem?  <response>: Hi.it is best if you consult with a general surgeon. Based from your description, it looks like hemorrhoids. Medical and physical examination must be done to ensure that theres no active internal bleeding, and it is non-thrombosed. Further diagnostic evaluation such as photocopy and management medical andor surgical if indications are found will be directed accordingly. If youve constipation history, it is also best for you to be on high fiber diet. Hope this helps. Good day!! Chat Doctor. 