Vulvar acne during pregnancy is mainly related to hormonal changes during pregnancy, vulvar infections, bad dietary habits, etc. 1, hormonal changes during pregnancy: female estrogen secretion during pregnancy, which can cause an increase in vaginal secretions, changes in the vaginal environment, and pregnancy is accompanied by a certain degree of decline in the immunity of the female, and is therefore more likely to be stimulated by a variety of inflammatory factors, resulting in vulvar acne; 2, vulvar infection: Belong to the direct causative factors of vulvar acne during pregnancy, pregnant women who do not pay attention to vulvar care in their daily lives, can cause pathogen infection, resulting in the growth of various small pimples or small lumps around the vulva. Commonly, there are folliculitis, mycosis or bacterial vaginitis, pseudo condyloma acuminatum, condyloma acuminatum, etc. At this time, with the development of the condition of the pimples can gradually increase in size, the surface of the unevenness, or even the appearance of the nipple-like, mycotic or cauliflower-like bumps, you should seek medical treatment in a timely manner; 3, bad eating habits: If you eat too much spicy and stimulating food during pregnancy, it can stimulate the local skin to secrete more oil, triggered by the pimples. Therefore, during pregnancy found vulvar acne, should be timely to the regular hospital, clear diagnosis and follow the doctor’s instructions for treatment, to avoid blind use of drugs, in order to prevent the fetus in the womb to cause adverse effects. At the same time, pay attention to personal hygiene, do not go to the public bath place bath, change underwear, use good quality hygiene products, wear loose breathable clothing, pay attention to pregnancy nutrition, eat less spicy and stimulating food.