The hardness of the stomach in the middle of pregnancy, if there is no pain, is considered to be caused by physiological contractions of the uterus. This is because the fetus is moving too much in the uterine cavity or after being stimulated by the outside world, the phenomenon of a hard tummy will occur, this situation does not require special treatment, it will return to normal, there is no regularity in this hard tummy, and there is no pain. You can use your hands to gently hold up your abdomen during the hardening of the stomach to reduce the feeling of hardness and relieve the discomfort of the stomach. You can also gently stroke your belly when your tummy is hard, which can also relieve the symptoms of a hard tummy. If there is no tummy pain, there is no need for special treatment. In the process of hardening, if it is accompanied by pain, consider the possibility of true uterine contractions or pre-term miscarriage.