How does the pain in the lower abdomen cause anal depression?

The causes of abdominal distension and anal dropsy may be the following:

1. It may be caused by rectal inflammation, which may be caused by bacterial inflammation, viral infection, or immune system diseases such as ulcerative colitis.

2. Lower abdominal pain, anal distension, may be caused by rectal cancer, accompanied by mucus pus and blood stool and changes in defecation habits. Diarrhea and constipation occur alternately.

3. Lower abdominal pain, anal distension, may be caused by acute gastroenteritis and diarrhea. If there is lower abdominal pain, anal distension, it is recommended to go to a regular specialized hospital system for examination, clear diagnosis, and timely symptomatic treatment according to the cause.