Pain in the lower part of the body may be related to the pressure of an enlarged fetus, which is usually normal. It may also be caused by pre-eclampsia, preterm labor, prodromal labor or reproductive system lesions, which is an abnormal condition and the pregnant woman should try to go to the hospital for treatment. If lower abdominal pain or perineal pain occurs during pregnancy, it may be related to the pressure of an enlarged fetus. It may also be due to hormonal changes in the body during late pregnancy, which contribute to the gradual separation of the pubic symphysis in physiological preparation for delivery, resulting in pain. This pain is usually less severe and cannot be relieved by medication, so care should be taken to adjust the position and avoid maintaining the same position for a long time. If, in addition to pain in the lower abdomen and perineum, there is also tightness in the abdomen, regular pain, redness, vaginal fluid, etc., it may be related to preterm miscarriage, preterm labor or labor, so you need to seek medical examination in time. If you are in full-term labor, prepare for birth-related matters. If you are in preterm miscarriage or preterm labor, try to carry out fetal preservation treatment, and if necessary, you can be hospitalized to ensure the safety of mother and baby. If there are symptoms such as increased leucorrhea and yellowing, you should be highly alert to the possibility of vaginitis, cervicitis and other pathologies of the reproductive system. It is recommended to go to the hospital for gynecological examination in a timely manner to observe whether the vulva is red, swollen and congested, and to take vaginal secretions for routine examination. Vaginitis should be treated during pregnancy, especially in the middle and late stages of pregnancy. Vaginal medication can be administered vaginally to avoid blind observation and waiting. Vaginal medication is usually administered according to the pathogen, using lotion to rinse the vulva, vaginal douching is not recommended to avoid destroying the normal vaginal flora.