The hardness around the belly button of a girl may be caused by overeating, may also be caused by constipation, and may be caused by intestinal obstruction. 1. Physiological factors: overeating can lead to hard symptoms around the navel of the girls, which is the stomach of the substantial food clumps caused by the normal phenomenon, do not need to worry too much, as long as you wait until the food is digested and discharged after the disappearance. 2. constipation: constipation occurs in women, which may be sedentary, lack of exercise and other factors related to women, constipation of female patients will also appear around the navel hard symptoms, this time you only need to use Keserol, or take aloe vera capsules and other drugs laxative can be relieved. 3. Intestinal obstruction: Intestinal obstruction is a variety of reasons leading to intestinal contents through the obstacle of the disease, the disease can also lead to hard symptoms around the navel, which is due to intestinal obstruction, obstruction above the part of the intestinal tube pressure increases. In addition to the above diseases, other diseases can also lead to symptoms of hardness around the navel of girls, such as inflammation of the peritoneum in the area. The patient should consult a doctor in time to find out the cause and ask the doctor to deal with it.