Sigmoid ulcer type is not necessarily moderately differentiated carcinoma, but may also be ulcer, low-differentiated carcinoma, highly differentiated carcinoma and other conditions, it is recommended to consult the standardized treatment in a timely manner. Ulcerative type of sigmoid colon is the way of growth, and the nature of lesion may be ulcer, tumor, and it needs to be diagnosed by pathology to be able to clarify which pathological type. There are various pathological types of sigmoid colon cancer, such as low differentiated cancer, high differentiated cancer, moderately differentiated cancer, etc. Patients with colon cancer diagnosed clinically need to actively carry out auxiliary examination, give appropriate treatment in order to achieve good therapeutic effect, and have regular recheckups to adjust the treatment plan in time. If the ulcerative type of sigmoid colon is found, it is recommended to go to the hospital in time to get a clear diagnosis and treatment so as not to delay the condition.