Third Trimester Cramping: Normal Causes vs. Warning Signs

Mild, intermittent cramping in the third trimester is usually physiologic, but certain patterns require prompt evaluation.

Common Benign Causes

• Braxton Hicks Contractions: Irregular, non-progressive "practice" contractions; often relieved by hydration, position change, or rest.
• Round Ligament Pain: Sharp, brief groin/hip pain with sudden movement.
• Gastrointestinal: Constipation, gas, reflux from uterine compression.
• Fetal Movement: Strong kicks against ribs or bladder.

Red Flags – Contact Provider Immediately

• Regular contractions (<10 min apart) before 37 weeks (preterm labor)
• Severe, constant abdominal pain
• Vaginal bleeding or fluid leakage
• Decreased fetal movement
• Headache, visual changes, epigastric pain (preeclampsia signs)

Self-Care

Hydrate (2–3 L/day), empty bladder frequently, use warm compresses, practice prenatal yoga/stretching, sleep with pillow between knees.

When in doubt, call your obstetric provider—timely assessment prevents complications.