Tightness and hardness of the stomach at 19 weeks of pregnancy do not necessarily require treatment, the tightness and hardness of the stomach usually indicate contractions, and only pathological contractions require treatment. Contractions can be categorized into physiological contractions and pathological contractions. Physiological contractions mean that pregnant women will occasionally feel painless abdominal tightness after 12 weeks, without vaginal bleeding, cervical shortening and dilatation of the uterine opening, etc. Pathological contractions are more frequent abdominal tightness, and can be accompanied by pain, vaginal bleeding and other symptoms. The need for treatment of pathologic contractions depends on the situation. If constipation, fatigue, etc. can cause contractions, after defecation, rest, contractions are relieved, generally do not need treatment, but if contractions occur at the same time, vaginal bleeding or cervical changes, you need to give medication to protect the fetus, such as progesterone, etc., the specifics of the need to comply with the doctor’s instructions. If the patient’s stomach is tight, and the patient can’t tell whether the contractions are physiological or pathological, the patient should consult the doctor in time, so as to avoid delaying the condition and missing the best time to preserve the fetus.