High squamous epithelial cells in pregnant women may be related to gynecological inflammation or inflammation of the urinary system, or it may be a normal phenomenon of a faster metabolism. It is necessary to analyze the situation and other manifestations to find the cause and deal with it according to the specific situation. The surface of the vagina, vaginal part of the cervix and urethra are covered with squamous epithelial cells. Estrogen encourages the growth and differentiation of squamous epithelial cells, while the role of progesterone is to encourage the shedding of squamous epithelial cells. The progesterone level in pregnant women is high and the metabolism is fast, so squamous epithelial cells will be shed every day. Therefore, if a pregnant woman has high squamous epithelial cells, it is usually normal and no special treatment is needed if there is no other discomfort. If the squamous epithelial cells are high or accompanied by vulvar itching, burning pain at the vaginal opening, urinary urgency, painful urination and other discomforts, it should be considered as a result of inflammation. It is recommended to go to the hospital to clarify whether it is gynecological or urinary inflammation, and to carry out anti-inflammatory treatment for the cause. Note: Pregnant women should pay attention to drink more water and urinate more often to flush the urethra, keep the vulva clean and hygienic, change underwear regularly to avoid infection; prohibit sexual intercourse in the first and second trimesters of pregnancy; perform regular maternity checkups to keep track of the fetus and the pregnant mother’s physical condition.