Women’s sudden back pain may have the following reasons: First, gallbladder disease, when there is cholecystitis or gallbladder stones, there can be sudden pain in the right side of the back, which is a manifestation of acute attack of cholecystitis and gallbladder stones, for the radiating pain, this time, we need to carry out the gallbladder CT, ultrasound examination for diagnosis. Second, heart disease, when the heart has a heart attack or angina pectoris, there can be a sudden pain in the left side of the back, also radiating pain, this time, we should carry out cardiac ultrasound, electrocardiography and cardiography for early diagnosis and treatment. Third, pancreatic diseases, when the pancreas has inflammation or tumor, sudden back pain can also occur, especially after eating greasy food or overeating, back pain can suddenly occur, then we should carry out CT of pancreas, magnetic examination and blood test for diagnosis.