OASIS: Obstetric Anal Sphincter Injuries and Recovery
OASIS are severe childbirth tears involving the anal sphincter muscles and may affect bowel control, pelvic-floor function, healing, and sexual comfort.
Perineal Tear: Degrees, Symptoms, Treatment, and Recovery
A perineal tear is an injury between the vaginal opening and anus that commonly occurs during childbirth and may affect skin, muscles, or the anal sphincter.