Abdominal pain in the elderly is usually caused by digestive tract tumors, pelvic lesions or intestinal spasm caused by cold stimulation. 1. Tumor of digestive tract: Tumor of digestive tract such as rectal cancer, sigmoid colon cancer and other diseases may cause pain in the lower abdomen, but such cases are usually accompanied by rectal and abdominal masses, lethargy and fatigue and other symptoms. 2. Pelvic lesions: Pelvic lesions such as cystitis, prostatitis, pelvic tumors and other diseases may also lead to lower abdominal pain, especially prostatitis, which has a high incidence rate in elderly men. Such diseases are usually accompanied by symptoms such as urinary abnormalities (e.g., frequent urination, urgency, painful urination). 3. Intestinal spasms: If you have not done a good job of keeping your abdomen warm in the recent past, and let the abdomen of the elderly get cold, it may irritate the intestines, leading to spasms in the gastrointestinal tract and thus triggering pain. There are many factors that can cause pain in the lower abdomen, considering that the patient is over 70 years old, there is a decline in body function, the cause of abdominal pain is more complex. It is recommended to go to the hospital in a timely manner, complete the relevant examinations, and then carry out the appropriate treatment after clarifying the cause.