Women fifty-three years old falling below the navel may be pelvic inflammatory disease, uterine fibroids, intestinal obstruction, acute gastroenteritis and other causes. 1. Pelvic inflammatory disease: bacterial infection of the pelvic cavity causes inflammatory changes, resulting in pain below the navel, increased leukorrhea, yellowish color, lumbosacral pain and other symptoms. 2. Uterine fibroids: uterine fibroids are relatively large, causing symptoms such as swelling and pain below the navel under the effect of gravity. 3. Intestinal obstruction: when the intestinal tract is obstructed, the intestinal contents can not be discharged, causing symptoms such as swelling below the navel and hyperactive bowel sounds. 4. Acute gastroenteritis: eating unhygienic food triggers acute gastroenteritis, which can lead to swelling below the navel, diarrhea, abdominal pain, vomiting and other symptoms. 53-year-old woman belly button below the swelling, there may be other reasons, it is recommended to visit the hospital doctor to identify the cause of the disease, follow the doctor’s instructions for treatment.