The colon can be removed. The colon’s main function is to absorb part of the water and a small amount of vitamins, as well as to form the stool, and since some other organs also perform these functions, the colon can be removed. If the patient has a malignant tumor of the colon, then early surgery is required to remove the diseased intestine, followed by an intestinal anastomosis. After the surgery, it does not affect the normal physiological functions of the patient or the absorption of nutrients. If a patient has a colon lesion caused by trauma, surgery is also required. Therefore, if the condition requires the removal of part of the colon or even the whole colon, the operation may be performed according to medical advice. After the surgery, if the patient has mild diarrhea or loose bowel movements, he or she can actively adjust the diet and take the appropriate medication, which can be consulted with the attending physician.