<s>[INST] I had a bout of vomiting and diarrhea in the middle of the night and now my rectum is bleeding. NOT just spotting on the toilet paper. I don't bleed unless Iam sitting on the toilet and when I cough the blood spurts out. I first noticed it this morning before I hopped in the shower I coughed a lot( I have a bad cold right now ) and 3 big spots of blood had dripped out onto my floor. Now everytime I'm on the toilet today blood spurts out..should I go see a doctor or wait it out? [/INST] Thank you for your query Yes, any rectal bleeding should be checked out immediately, especially in the quantity you mentioned and that spurts. Do you have any history of hemorrhoids, liver disease or intestinal/rectal surgery? Did you have any recent diarrhoeal  disease? Sometimes increased intra abdominal pressure (such as when you cough)  could  rupture tiny blood vessels in the anal canal that can bleed If this continues, I recommend you go to the ER. If it is minimal or stops,  see your physician ASAP to rule out serious  disorders and prevent  further blood loss. Expect to be hospitalized, with blood work. Depending on where the bleeding point is and how big it is, how much blood loss has occurred, you may need cautery/pressure dressings, blood products. These are just  a few things.  It may just be a small vessel bleed and you may be allowed to go home after  a few hours Hope this helps. Wish you good health.  Please get back to us if you need any clarification </s>