The hardness and tightness of the stomach in the eighth month of pregnancy may be physiological, or it may be due to false contractions and other reasons. 1. physiological performance: if the fetus in the uterine cavity activity is too large, will stimulate the uterus contraction show stomach hard, tight, generally transient, can be relieved on their own, without special treatment. 2. False contractions: the uterus will produce false contractions during pregnancy, and the appearance of the stomach hard, taut feeling, usually after rest or change position symptoms can be relieved, late pregnancy false contraction frequency will increase. If the pregnant woman appears 8 months pregnant stomach hard, tight, low frequency, fetal movement is normal, generally do not need to deal with, if accompanied by vaginal bleeding, abdominal pain and other symptoms, it is recommended to consult a doctor in a timely manner, under the guidance of the doctor, improve the relevant examination, to clarify the cause of the disease, symptomatic treatment.