Doing things generally refers to sex, women after sex stomach pain more causes, may be more intense action, pelvic inflammatory disease or intestinal diseases and other reasons. 1. Strenuous action: If the action is too strenuous during sex, it will lead to congestion of the sexual organs, which may cause stomach pain after sex. 2. Pelvic inflammatory disease: If you suffer from pelvic inflammatory disease, under the stimulation of inflammation, it can lead to symptoms of stomach pain after sex, often accompanied by abnormal secretions. 3. Intestinal diseases: such as ulcerative colitis, appendicitis, irritable bowel syndrome and other diseases, may also cause stomach pain after sex in women. There may also be other reasons for women’s stomach pain after sex, it is recommended to consult a doctor in a timely manner, improve the relevant examination, under the guidance of specialists to actively carry out diagnosis and treatment.