Feeling bubbles inside the anus, in addition to the normal physiological factors, mostly considered gastroenteritis, irritable bowel syndrome and other diseases. 1. Physiological factors: such as abdominal cold, nervousness, intake of excessive gas-producing food, etc., may appear in the anus bubbling feeling. 2. Gastroenteritis: part of the history of gastroenteritis people can be due to gastrointestinal dysfunction and other factors, the emergence of anal bubbling sensation, accompanied by loss of appetite, diarrhea, nausea and vomiting and other symptoms. 3. Irritable bowel syndrome: the cause of the disease is not yet clear, generally considered to be related to abnormal gastrointestinal dynamics, mental state. In addition to anal bubbling, accompanied by abdominal pain, diarrhea and other symptoms. It is recommended that if you have anal discomfort symptoms, you should go to the hospital in a timely manner to get a clear diagnosis and follow the doctor’s instructions to give reasonable treatment to avoid delays.