The human gastrointestinal tract is innervated by sympathetic and parasympathetic nerves and can also be affected by external fluctuations such as moods. Patients with mood swings when they are angry can cause increased intestinal peristalsis in the abdominal cavity. Patients may experience pain in the abdomen, which manifests as bouts of pain and is mainly caused by intestinal spasm. The pain can be relieved by rest or by massage with the hands. It may also be caused by a lesion within the abdominal cavity, commonly known as appendicitis. Patients may experience pain in the right lower abdomen, which is more intense in nature and may not be noticed at first and only when the stomach pain worsens when angry. Patients can perform an ultrasound examination of the appendix to clarify the diagnosis. If swelling of the appendix, surrounding oozing or an embedded fecal stone in the cavity is found, the diagnosis can be diagnosed, and surgery is recommended after the diagnosis.