Generally pregnant women are more than normal people than sweat and sebaceous glands secretion, often manifested as increased sweating, resulting in the secretion of large amounts of oily substances in the head easy to cause the body skin and head pores blockage, affecting its normal metabolic function, easy to lead to skin infections or itching and other skin-related diseases, so it is generally recommended that pregnant women bathe regularly to maintain hygiene and cleanliness. However, special attention should be paid to the way of bathing. It is generally not recommended to take a sitz bath. Under normal circumstances, women’s vagina is acidic, which can prevent the reproduction of germs, but when women are pregnant, the amount of progesterone produced is greater than estrogen, which can lead to the shedding of vaginal epithelial cells than proliferation, which can decrease the acidity of the vagina and thus reduce the vaginal antibacterial ability. After taking a sitz bath, dirty water may enter the vagina, and because the vagina’s ability to inhibit bacteria is weakened at this time, cervicitis, adnexitis and intrauterine and vaginal infections may be induced and lead to preterm labor. Therefore, it is generally not recommended for pregnant women to take a sitz bath, but they can take a shower for no more than 15-20 minutes, and the water temperature should be controlled at about 37 degrees to prevent hypoxia caused by high water temperature, which may lead to intrauterine fetal dysplasia, and in serious cases, fetal death in the womb.