MedlinePlus Health Topics
disease topic
Patient-friendly
Preterm Labor
Source: MedlinePlus Health Topics, U.S. National Library of Medicine
Last synced 8/4/2026Status: primary verified
Preterm labor is labor that starts before 37 completed weeks of pregnancy. It can lead to premature birth. Premature babies may face serious health risks. Symptoms of preterm labor include: Contractions every 10 minutes or more often Leaking fluid or bleeding from the vagina Feeling of pressure in the pelvis Low, dull backache Cramps that feel like menstrual cramps Abdominal cramps with or without diarrhea If you think you might be having preterm labor, contact your health care provider. NIH: National Institute of Child Health and Human Development
Educational only
This information is for general education and is not medical advice. Always talk to a licensed U.S. clinician about your situation, medications, or treatment decisions.