Sandbox

Stage	Info	Picture
1st		Latent Passage of cervical mucous plug Slow dilation to 3 cm Active Rapid cervical dilation from 3 cm to 10 cm ~8 hours in primiparous and ~5 hours in multiparous
2nd		Cervix fully dilated Urge to push Expulsion of infant ~20 - 50 minutes
3rd		Placental delivery ~20 minutes >18 minutes increases risk of postpartum hemorrhage with >30 minutes conferring very increased risk
4th stage		1st hour after placental delivery Period of time with highest risk for postpartum hemorrhage