Rupture of membranes before labor is called premature rupture of membranes, commonly known as rupture of water. Sudden leucorrhea with or without symptoms of various reasons, the amount of discharge can be more or less. General treatment measures include: absolute bed rest, raising hips to avoid umbilical cord prolapse, keeping vulva clean, and avoiding vaginal examination and anal examination. So choose C. The key to solve the problem: stay in bed after premature rupture of membranes, raise breech position and avoid umbilical cord prolapse.