How long will it take for a pregnant woman to give birth after seeing red?

Patient's question:

No

Doctor's answer:

See red. In the 24 to 48 hours before labor, a pregnant woman may discharge a small amount of bloody mucus from her vagina, commonly referred to as "seeing red." This is a relatively reliable sign that labor is about to begin, as it occurs when the cervix dilates and the nearby fetal membrane separates from the uterine wall, causing capillaries to rupture and resulting in a small amount of bleeding that mixes with cervical mucus and is expelled.