The sensation of bubbles swimming in the lower abdomen is mainly seen clinically in the following two cases: 1. It is usually seen in acute gastroenteritis caused after eating unclean food in summer and autumn, followed by episodes of gastrointestinal spasm and incomplete intestinal obstruction. There is usually a clear history of eating unclean food, and even symptoms such as abdominal pain and diarrhea. Treatment mainly adopts a light diet, can be treated with oral quinolone antibiotics, generally 3-5 days can be relieved, or even cured. 2, need to be highly alert to the presence of polyps in the colon, or complete or incomplete intestinal obstruction caused by tumors. It usually requires further colonoscopy to clarify the diagnosis, and also requires endoscopic polyp or tumor removal, partial colon resection, or even radical colon cancer resection surgery treatment.