A rectal bulging lesion is usually a lesion in which the rectal mucosal tissue becomes congested, edematous or or redundant, resulting in a localized bulge. It is usually considered to be related to internal hemorrhoids, rectal polyps, rectal cancer and other diseases. 1. Internal hemorrhoids: generally due to internal hemorrhoids in the attack, will lead to rectal mucosal blood vessels form curved venous mass, which leads to the phenomenon of rectal bulging lesions, and there will be blood in the stool and other symptoms. 2. Rectal polyps: long-term stimulation or damage to the rectal mucosa, so that the cells appear abnormal proliferation, thus causing rectal polyps, there will be the phenomenon of bulging lesions, rectal polyps will generally appear rectal swelling, pain and other symptoms. 3. Rectal cancer: it may be due to the gradual stimulation of rectal mucosa by cancer cells, thus causing the phenomenon of rectal bulging lesions. Rectal cancer usually presents with symptoms such as blood in the stool and increased frequency of stool. In addition, factors such as hypertrophy of anal papilla in the rectum and lymphatic enlargement around the rectum can also lead to rectal bulging lesions. Therefore, if you find rectal bulging lesions, you should consult the doctor in time and follow the doctor’s instructions for timely treatment after clear diagnosis.