What is the difference between rectal cancer and rectal polyp adenoma?

Rectal cancer and rectal polyp adenoma are mainly different in the following aspects: 1. Different pathological properties Rectal cancer: A malignant tumor, originating from rectal mucosal epithelial cells, invasive and metastatic. Rectal polyp adenoma: A benign tumor, usually originating from rectal mucosal glands, with a tendency to malignant. 2. Different symptoms Rectal cancer: Early usually no obvious symptoms, as the disease progresses, can appear hematochezia, stool habits change, abdominal pain, abdominal distension, intestinal obstruction and other symptoms. Rectal polyp adenoma: most no obvious symptoms, a few can appear hematochezia, prolapse, intestinal irritation symptoms. 3. Different treatment methods Rectal cancer: the main treatment methods include surgery, radiotherapy, chemotherapy, targeted therapy, etc. Rectal polyp adenoma: The treatment method is mainly surgical resection, according to the size, shape, number and other factors to choose the appropriate surgical method. 4. Prognosis is different Rectal cancer: Prognosis depends on the tumor stage, treatment method and the patient's physical condition and other factors. Early rectal cancer after surgery, prognosis is better; Advanced rectal cancer prognosis is poor. Rectal polyp adenoma: The prognosis is generally good, but if not treated in time, polyps may become malignant and the prognosis is poor. It should be noted that rectal cancer and rectal polyp adenoma may be difficult to distinguish in some cases and need to be diagnosed by pathological examination. For people with family history of rectal cancer, long-term constipation, diarrhea, hematochezia and other symptoms, rectal digital examination, colonoscopy and other examinations should be carried out regularly in order to early detection, early diagnosis and early treatment.