It is very harmful for people to suffer from cancerous visceral pain, which is also a common oncological disease with a high incidence nowadays. Visceral pain is mainly caused by disorders of internal organs, including dilatation, ischemia, inflammation and pulling of intestinal mesentery. Examination: 1. Laboratory examination Routine blood tests and blood biochemical tests can be performed. In case of bone metastasis, high blood calcium is found in blood biochemical examination. 2.Other auxiliary examinations CT, ultrasound, nuclear, MRI, X-ray, etc. can help to determine the location and nature of tumor. Nuclear examination can provide clear diagnosis for bone metastasis earlier. Treatment: Cancerous visceral pain is generally treated by medication, and surgical treatment often needs to be considered in conjunction with the overall physical condition and survival of the patient. After the cause of the patient’s pain is clearly identified and treated, the analgesic effect and the degree of pain relief must be evaluated in order to formulate the future treatment plan and the dosage of medication. The principles of drug treatment for cancer visceral pain: (1) Try to administer drugs orally for long-term use, which can reduce dependence and addiction. (2) Give the medication regularly and on time, rather than when pain occurs. (3) Give the medication according to the step, according to the “three-step therapy” recommended by WHO for cancer pain. (4) The medication should be individualized. (5) Pay attention to the use of anxiolytic, antidepressant and hormonal drugs, which can improve the effect of analgesic treatment.