For women, sex hormones mainly refer to estrogen and progesterone, so estrogen can make people gain weight, mainly because estrogen can cause water and sodium retention in the body, so there will be weight gain and they will become fat. So this is a corresponding clinical side effect of estrogen, for example, if it is supplemented with exogenous estrogen, it may lead to weight gain and may cause menstrual disorders, and it may also lead to discoloration of the face. In addition, for example, the oral short-acting contraceptive pill contains estrogen, which may also lead to weight gain. Therefore, before taking the pill, it is important to understand the side effects of the pill and to understand the contraindications before taking the pill, so if you are taking the pill for contraception, it is recommended that you can do the appropriate tests to exclude contraindications before taking it orally.