Preterm Labor

Women's Health

Preterm labour is labour that starts before 37 completed weeks of pregnancy. Babies born early — particularly before 34 weeks — face higher risks from immature lungs, feeding difficulties, infections, bleeding in the brain, and long-term developmental issues.

Also known as: Early Labor, Premature Birth, Premature Labor, Preterm Birth

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About Preterm Labor

About this summary: Written by Swasthya Plus for Indian readers, using MedlinePlus, National Library of Medicine as a reference source. For personal guidance, please consult a qualified Health Expert.

Preterm labour is labour that starts before 37 completed weeks of pregnancy. Babies born early — particularly before 34 weeks — face higher risks from immature lungs, feeding difficulties, infections, bleeding in the brain, and long-term developmental issues. Preterm birth is the single biggest cause of newborn death in India — recognising early warning signs saves lives.

Signs of preterm labour — go to hospital immediately

  • Regular contractions before 37 weeks — every 10 minutes or sooner, lasting at least 30 seconds.
  • Period-like cramping.
  • Low backache, pelvic pressure — persistent.
  • Change in vaginal discharge — watery, bloody, mucousy.
  • Water breaking — gush or trickle of clear fluid.
  • Vaginal bleeding.
  • Reduced baby movements — always deserves check.

Risk factors

  • Previous preterm birth.
  • Short cervix (may be found on ultrasound).
  • Twins/triplets.
  • Infections — urinary, genital, gum disease.
  • Very young or older (>35) mothers.
  • Very short interval between pregnancies.
  • Smoking, substance use.
  • Severe stress, physical abuse.
  • Inadequate antenatal care.
  • Certain maternal conditions — high BP, diabetes, heart/kidney disease.
  • Uterine anomalies, cervical incompetence.

What a Health Expert may do

  • Assess how far labour has progressed.
  • Steroid injections for the mother — help the baby's lungs mature; most valuable between 24 and 34 weeks.
  • Magnesium sulfate — protects baby's brain if very early delivery is expected.
  • Medicines to slow contractions (tocolytics) — to buy time for steroids to work.
  • Antibiotics if infection present.
  • Transfer to a hospital with a NICU before delivery when possible — outcomes are much better.

Prevention

  • Attend antenatal visits, eat well, treat anaemia aggressively.
  • Stop smoking, alcohol, and any substance use.
  • Treat urinary infections promptly.
  • Dental hygiene — gum disease is a known preterm birth risk.
  • Cervical length scan in women with previous preterm birth or risk factors.
  • Progesterone support, cervical stitch in select women with clear indications.
  • Space pregnancies at least 18 months apart.

Reference source: MedlinePlus, National Library of Medicine