Pregnant women bending over to pick up small abdominal pain can be seen in the normal physiological situation, but also may be the first sign of miscarriage or preterm labor, acute gastroenteritis caused by, should consult a doctor in a timely manner, to clarify the cause of the treatment. 1. Physiological conditions: the uterus increases in late pregnancy will cause pregnant women to bend over and pick up small abdominal pain, usually not persistent, can be relieved, such pregnant women should avoid bending and strenuous exercise. 2. Pre-eclampsia or preterm labor: pregnant women bending over to pick up small abdominal pain and accompanied by vaginal bleeding, should be considered to be pre-eclampsia or preterm labor caused. Such patients should rest in bed, if necessary, under the guidance of a doctor to use birth control drugs for treatment, such as oral progesterone capsules or intravenous drip magnesium sulfate. 3. Acute gastroenteritis: If a pregnant woman bends over to pick up something small abdominal pain, before there has been a history of unclean diet, and there is diarrhea, vomiting and other symptoms should be considered to be caused by acute gastroenteritis. Pregnant women bending over to pick up something small abdominal pain, there may be other reasons, it is recommended to consult a doctor in a timely manner, after a clear diagnosis of symptomatic treatment.