The falling sensation in the stomach is considered to be gastrointestinal diseases, gynecological diseases, urogenital diseases and so on. 1. Gastrointestinal diseases: gastroenteritis can occur when bacteria and viruses infect the gastrointestinal tract, which may cause lower abdominal swelling, abdominal pain, diarrhea and other symptoms; tumors in the intestinal tract can cause discomfort after repeated stimulation of the intestinal tract. 2. Gynecological diseases: when women experience abdominal cramping, they may consider chronic adnexitis, which may cause abdominal pain, lower abdominal cramping, increased vaginal discharge, menstrual disorders and other symptoms; it may also be pelvic inflammatory disease, which is usually caused by infections, and it may cause lower abdominal cramping, lower abdominal pain, abnormal vaginal bleeding and other symptoms. 3. Genitourinary diseases: men who have a falling sensation in the stomach are considered to be suffering from prostatitis, which can have symptoms such as lower abdominal distension, a falling sensation, and urinary abnormalities; chronic epididymitis can cause pain in the scrotum, swelling of the epididymis, and other symptoms. You can go to the hospital and ask the doctor to make a judgment and clarify the cause of the disease.