During pregnancy, the soft birth canal undergoes a series of changes to adapt to delivery, such as tissue softening, increased elasticity, and a certain degree of extensibility. Despite these changes, when the fetus is delivered through the birth canal, the degree of dilation required is relatively large. Most women, especially first-time mothers, may still experience varying degrees of cervical, vaginal, and perineal damage during childbirth. The so-called birth canal laceration here refers to the laceration of the soft birth canal during childbirth. The following is an introduction to the manifestations of birth canal laceration during delivery: 1. Cervical laceration When first-time mothers give birth, the cervix is often damaged.