How Long Is the Rectum?

The rectum has a length of approximately 10 cm to 14 cm. It is part of the human digestive system, serving as the final segment of the alimentary canal. Located within the pelvic cavity, it connects superiorly with the sigmoid colon and inferiorly with the anus. It is composed of the mucosal layer, submucosal layer, muscular layer, and partial serosal layer, spanning a length of roughly 10 cm to 14 cm. Due to variations in individual growth and development as well as measurement techniques, there can be differences in length. In the absence of adverse conditions, these variations are considered normal physiological phenomena and do not require special treatment.

The rectum plays a role in controlling and discharging feces within the digestive system. This area is prone to diseases such as rectitis and rectal polyps, which may lead to symptoms like diarrhea, hematochezia, and tenesmus. Timely treatment is necessary, such as taking medications like Sulfasalazine Enteric-coated Tablets, Mesalazine Enteric-coated Tablets, and Metronidazole Tablets for rectitis under medical guidance. Rectal polyps can be treated surgically with procedures like mucosal resection or endoscopic submucosal dissection performed by a doctor. It is important to maintain a balanced diet by minimizing the intake of greasy and spicy foods, such as fried bread sticks, fried chicken, and chili peppers, to keep stool smooth and the anal area clean. In case of adverse conditions, medical attention should be sought promptly.