Maternal Health

Back Pain During Pregnancy

Medically reviewed by Dr. Lisa Okafor, MD, FACOG · Board-Certified OB-GYN

Content reviewed against published ACOG, NIH, Mayo Clinic guidelines

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Your health matters just as much as your baby's. If you are dealing with back pain during pregnancy, here is what you need to know.

The short answer

Back pain affects approximately 50-70% of pregnant people and is most common in the second and third trimesters. It is usually caused by the shifting center of gravity, weight gain, hormonal changes that loosen ligaments, and postural adjustments as the belly grows.

Key takeaways

  • Back pain affects approximately 50-70% of pregnant people and is most common in the second and third trimesters. It is usually caused by the shifting center of gravity, weight gain, hormonal changes that loosen ligaments, and postural adjustments as the belly grows.
  • Usually normal when: Dull, aching lower back pain that worsens with standing or activity and improves with rest
  • Call your doctor if: Sudden severe back pain, especially with vaginal bleeding, which could indicate placental abruption or preterm labor
  • Varies by age — see the age-by-age breakdown below
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What Parents Should Know

According to ACOG, NIH, Mayo Clinic guidelines, back pain affects approximately 50-70% of pregnant people and is most common in the second and third trimesters. It is usually caused by the shifting center of gravity, weight gain, hormonal changes that loosen ligaments, and postural adjustments as the belly grows. At First trimester, back pain in the first trimester is less common but can occur due to hormonal changes, particularly the hormone relaxin, which loosens ligaments and joints. Early pregnancy back pain is usually mild. If severe back pain occurs in early pregnancy, especially with bleeding, contact your provider to rule out other causes. It is generally considered normal when dull, aching lower back pain that worsens with standing or activity and improves with rest. However, you should contact your pediatrician promptly if sudden severe back pain, especially with vaginal bleeding, which could indicate placental abruption or preterm labor.

Sources: [1], [2], [3]

Normal vs. Concerning

Usually Normal
Worth Discussing
Dull, aching lower back pain that worsens with standing or activity and improves with rest
Sudden severe back pain, especially with vaginal bleeding, which could indicate placental abruption or preterm labor
Pain that developed gradually as your pregnancy progressed
Rhythmic back pain that comes and goes at regular intervals, which may be back labor or preterm labor contractions
Mild to moderate pain managed with position changes, warm compresses, or gentle stretching
Back pain with fever, painful urination, or other signs of kidney infection
Pain on one or both sides of the lower back or posterior pelvis
Back pain is severe enough to interfere with daily activities or sleep

By Age

What to expect by age

First trimester

Back pain in the first trimester is less common but can occur due to hormonal changes, particularly the hormone relaxin, which loosens ligaments and joints. Early pregnancy back pain is usually mild. If severe back pain occurs in early pregnancy, especially with bleeding, contact your provider to rule out other causes.

Second trimester

Back pain typically begins or worsens in the second trimester as the uterus grows and your center of gravity shifts. Lumbar (lower) back pain and posterior pelvic pain are the most common types. Staying active with gentle exercise like walking or prenatal yoga, wearing supportive shoes, using a pregnancy support belt, and sleeping with a pillow between your knees can all help.

Third trimester

Back pain often peaks in the third trimester. The additional weight, further postural changes, and preparation for labor all contribute. Warm (not hot) compresses, prenatal massage, gentle stretching, and pelvic tilts can provide relief. Avoid standing for long periods and consider seeing a physical therapist if pain is significant.

Postpartum

Back pain often improves after delivery but may persist for weeks to months as your body recovers. Breastfeeding posture, carrying your baby, and weakened core muscles can contribute. Gentle postpartum exercises focusing on core strength can help. Talk to your provider if back pain persists beyond a few months.

What to Tell Your Pediatrician

  • Describe when you first noticed back pain during pregnancy and how it has changed over time.
  • Note your baby's current age and which age-specific patterns you are seeing.
  • Mention if back pain is severe enough to interfere with daily activities or sleep.
  • Mention if pain does not improve with rest, position changes, or home remedies.
  • Let your doctor know if you have noticed any related concerns, such as changes in feeding, sleep, or movement patterns.
  • Bring a list of any questions or observations you want to discuss at the appointment.

What Should You Do?

When to take action

Probably normal when...
  • Dull, aching lower back pain that worsens with standing or activity and improves with rest
  • Pain that developed gradually as your pregnancy progressed
  • Mild to moderate pain managed with position changes, warm compresses, or gentle stretching
  • Pain on one or both sides of the lower back or posterior pelvis
Mention at your next visit when...
  • Back pain is severe enough to interfere with daily activities or sleep
  • Pain does not improve with rest, position changes, or home remedies
  • You have numbness or tingling running down your legs
Act now when...
  • Sudden severe back pain, especially with vaginal bleeding, which could indicate placental abruption or preterm labor
  • Rhythmic back pain that comes and goes at regular intervals, which may be back labor or preterm labor contractions
  • Back pain with fever, painful urination, or other signs of kidney infection

What You Can Do at Home

  • Keep track of when you notice back pain during pregnancy — noting the time of day, duration, and any triggers can help your pediatrician.
  • Remember that dull, aching lower back pain that worsens with standing or activity and improves with rest — this is generally within the range of normal.
  • At First trimester, focus on observation rather than intervention unless your pediatrician advises otherwise.
  • Prioritize your own rest and nutrition. Accept help when offered, and do not hesitate to reach out to your healthcare provider.
  • While monitoring at home, seek immediate care if sudden severe back pain, especially with vaginal bleeding, which could indicate placental abruption or preterm labor.

Sciatic Nerve Pain in Pregnancy

Sciatica during pregnancy involves pain that radiates along the sciatic nerve, from the lower back through the buttock and down the leg. It affects roughly 1% of pregnant people and is caused by the growing uterus putting pressure on the sciatic nerve, hormonal changes loosening joints, or the baby's position.

Hip Pain During Pregnancy

Hip pain affects many pregnant people, particularly in the second and third trimesters. It is caused by the hormone relaxin loosening hip joints, weight gain changing your gait, the growing belly shifting your center of gravity, and the pressure of side sleeping. It is usually treatable with stretching, support pillows, and gentle exercise.

Back Labor Pain and Management

Back labor refers to intense lower back pain during labor, often caused by the baby being in an occiput posterior (OP or "sunny side up") position where the back of the baby's head presses against the birthing parent's spine. It occurs in about 25% of labors and can be managed with position changes, counter-pressure, water therapy, and other techniques.

Guide

Postpartum Recovery Guide

Week-by-week postpartum recovery timeline and warning signs.

Milestone

Month-by-Month Development

Detailed monthly development guides from birth through 24 months.

Guide

When to Call the Doctor

General guide on when to call the pediatrician, visit urgent care, or go to the ER.

Frequently asked questions

Is back pain during pregnancy normal?
Back pain affects approximately 50-70% of pregnant people and is most common in the second and third trimesters. It is usually caused by the shifting center of gravity, weight gain, hormonal changes that loosen ligaments, and postural adjustments as the belly grows.
When should I call the doctor about back pain during pregnancy?
Sudden severe back pain, especially with vaginal bleeding, which could indicate placental abruption or preterm labor Rhythmic back pain that comes and goes at regular intervals, which may be back labor or preterm labor contractions Back pain with fever, painful urination, or other signs of kidney infection
When is back pain during pregnancy normal?
Dull, aching lower back pain that worsens with standing or activity and improves with rest Pain that developed gradually as your pregnancy progressed Mild to moderate pain managed with position changes, warm compresses, or gentle stretching
What causes back pain during pregnancy?
Back pain affects approximately 50-70% of pregnant people and is most common in the second and third trimesters. It is usually caused by the shifting center of gravity, weight gain, hormonal changes that loosen ligaments, and postural adjustments as the belly grows. Common explanations include: Dull, aching lower back pain that worsens with standing or activity and improves with rest. Pain that developed gradually as your pregnancy progressed.
What should I mention to my pediatrician about back pain during pregnancy?
You should mention back pain during pregnancy at your next visit if: Back pain is severe enough to interfere with daily activities or sleep. Pain does not improve with rest, position changes, or home remedies. You have numbness or tingling running down your legs.
Is back pain during pregnancy normal at First trimester?
Back pain in the first trimester is less common but can occur due to hormonal changes, particularly the hormone relaxin, which loosens ligaments and joints. Early pregnancy back pain is usually mild. If severe back pain occurs in early pregnancy, especially with bleeding, contact your provider to rule out other causes.
Is back pain during pregnancy normal at Second trimester?
Back pain typically begins or worsens in the second trimester as the uterus grows and your center of gravity shifts. Lumbar (lower) back pain and posterior pelvic pain are the most common types. Staying active with gentle exercise like walking or prenatal yoga, wearing supportive shoes, using a pregnancy support belt, and sleeping with a pillow between your knees can all help.
Should I go to the ER for back pain during pregnancy?
Seek emergency care if sudden severe back pain, especially with vaginal bleeding, which could indicate placental abruption or preterm labor, or if rhythmic back pain that comes and goes at regular intervals, which may be back labor or preterm labor contractions. When in doubt, call your pediatrician's after-hours line for guidance.
Does back pain during pregnancy go away on its own?
In many cases, back pain during pregnancy resolves on its own, especially when dull, aching lower back pain that worsens with standing or activity and improves with rest. By Postpartum, back pain often improves after delivery but may persist for weeks to months as your body recovers. Breastfeeding posture, carrying your baby, and weakened core muscles can contribute. Gentle postpartum exercises focusing on core strength can help. Talk to your provider if back pain persists beyond a few months.
ACOGNIHMAYO CLINIC

References

  1. [1]American College of Obstetricians and Gynecologists. Back Pain During Pregnancy. ACOG FAQ, 2022. ACOG
  2. [2]National Library of Medicine. Low Back Pain in Pregnancy. StatPearls, 2023. NIH
  3. [3]Mayo Clinic. Back Pain During Pregnancy: 7 Tips for Relief. Mayo Clinic, 2023. Mayo Clinic

Doctor Visit Checklist

Bring this checklist to your next pediatrician visit to discuss Back Pain During Pregnancy.

Things to mention

  • Describe when you first noticed back pain during pregnancy and how it has changed over time.
  • Note your baby's current age and which age-specific patterns you are seeing.
  • Mention if back pain is severe enough to interfere with daily activities or sleep.
  • Mention if pain does not improve with rest, position changes, or home remedies.
  • Let your doctor know if you have noticed any related concerns, such as changes in feeding, sleep, or movement patterns.
  • Bring a list of any questions or observations you want to discuss at the appointment.

Observations to share

  • Back pain is severe enough to interfere with daily activities or sleep
  • Pain does not improve with rest, position changes, or home remedies
  • You have numbness or tingling running down your legs

Urgent signs to report immediately

  • Sudden severe back pain, especially with vaginal bleeding, which could indicate placental abruption or preterm labor
  • Rhythmic back pain that comes and goes at regular intervals, which may be back labor or preterm labor contractions
  • Back pain with fever, painful urination, or other signs of kidney infection

My notes

From ismybabyalright.com — free, evidence-based baby health guides

All content follows our editorial policy and is reviewed against published clinical guidelines.

2,705 evidence-based guides6 authoritative medical sources5 medical advisory board members

Related Resources

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Bottom line

Most cases of back pain during pregnancy are normal. Talk to your pediatrician if sudden severe back pain, especially with vaginal bleeding, which could indicate placental abruption or preterm labor.

Trust your instincts. If something feels wrong, reach out to your pediatrician. Worrying about your baby means you care — that is a good thing.

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Sciatic Nerve Pain in Pregnancy

Sciatica during pregnancy involves pain that radiates along the sciatic nerve, from the lower back through the buttock and down the leg. It affects roughly 1% of pregnant people and is caused by the growing uterus putting pressure on the sciatic nerve, hormonal changes loosening joints, or the baby's position.

Hip Pain During Pregnancy

Hip pain affects many pregnant people, particularly in the second and third trimesters. It is caused by the hormone relaxin loosening hip joints, weight gain changing your gait, the growing belly shifting your center of gravity, and the pressure of side sleeping. It is usually treatable with stretching, support pillows, and gentle exercise.

Back Labor Pain and Management

Back labor refers to intense lower back pain during labor, often caused by the baby being in an occiput posterior (OP or "sunny side up") position where the back of the baby's head presses against the birthing parent's spine. It occurs in about 25% of labors and can be managed with position changes, counter-pressure, water therapy, and other techniques.

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