A cold uterus in women may lead to a large small abdomen. In some women with a cold uterus, abdominal fat builds up to ensure the proper functioning of the uterus, thus causing a large small abdomen. However, this symptom varies from person to person and not all women with a cold uterus will have a large small abdomen. Patients are advised to keep their abdomen warm and avoid getting cold. If the small abdomen has suddenly increased in size recently, accompanied by abdominal pain and abnormal bowel movements, it is also important to be alert to other diseases and prompt medical attention is recommended.