Is it dangerous to have bloody stools and black vomit?

Question
Hello doctor, lately I often have blood in my bowels, when I go to my stomach, it is very painful and painful on the navel, at first I am a bit constipated and then I have a thick stool. After I finished walking, I saw blood, yellow stools, about 5 minutes later I had a stomach ache, I went to the bathroom to have thick stools and a lot of fresh blood. Sometimes I eat too much, so my stomach refluxes and vomits, I see black fluid and then I vomit again and I can't see it anymore. Hope you can reply me soon, thank you.
Do Hong Nhung (2002)
Reply
Hello. You should go to the doctor right away. Vomiting a little black fluid and bloody stools are symptoms that need to be examined immediately to detect, exclude and treat dangerous diseases if any.
Thank you for your question to Vinmec Health System. Best regards.
Specialist Doctor Dong Xuan Ha - Digestive Endoscopy Doctor - Department of Medical Examination and Internal Medicine - Vinmec Ha Long International Hospital.