There is a rumor that once you give birth, the “love muscle” is injured. The “love muscle” here refers to the female pelvic floor muscle. Pregnancy, childbirth, obesity, pelvic tumors, uterine and vaginal surgery, loss of ovarian function after menopause, and lack of sex hormones all tend to cause damage to the pelvic floor muscles and nerves, leading to pelvic floor dysfunction. Among them, pregnancy and childbirth are the most important causes of pelvic floor injury. When women have abnormal pelvic floor function, they may experience vaginal laxity, decreased libido, sexual arousal disorder, orgasm disorder, painful intercourse, etc., making women unsatisfied with the quality of their sexual life. It can also lead to body alignment, constipation, abdominal cramps, frequent urination, urinary urgency, urinary incontinence and pelvic organ prolapse (uterine prolapse, bladder prolapse, rectal prolapse, etc.), causing unspeakable pain, affecting the quality of life and causing family disharmony, etc. At present, society has a deep understanding of pregnancy care and postpartum breastfeeding, but little is known about the rehabilitation of the postpartum pelvic floor for new mothers. In addition, Chinese women are so secretive about sex that it is difficult to talk about vaginal laxity, sexual disharmony, painful intercourse and urinary incontinence. Therefore, new mothers need to undergo a comprehensive postpartum rehabilitation examination at 42 days after delivery, which includes a pelvic floor assessment. Whether vaginal or cesarean delivery, damage to the pelvic floor muscles is inevitable and the best time to rehabilitate the pelvic floor is between 42 days and 3 months after delivery.