Rectal neuroendocrine tumor G1 is relatively severe and is a rare neuroendocrine tumor originating in the rectum that is low-grade malignant. Rectal neuroendocrine tumors are divided into three grades: G1, G2 and G3. G1 is a highly differentiated neuroendocrine tumor with low malignancy and slow growth, G2 is moderately differentiated, i.e., safer, with a low degree of malignancy not prone to metastasis, and slow progression, and G3 is a lowly differentiated neuroendocrine tumor with a high degree of malignancy. Rectal neuroendocrine tumor G1, in the early lesion hidden, usually in the colonoscopy unintentionally found, with the further onset of the disease, the tumor volume further increase, can be manifested as abdominal pain, blood in the stool and diarrhea and other symptoms, diagnosis of the disease through pathological examination. Rectal neuroendocrine tumors may be cured, but not all of them can be cured, such as G1 grade, its cure rate is higher, can be local excision or radical resection, some can achieve curative effect, and the recurrence rate after surgery is low. Rectal Neuroendocrine Tumor G1 grade, it is recommended to visit the hospital in time for a clear diagnosis and treatment. To avoid delaying the condition.