Swelling and swollen legs during pregnancy
Mild swelling of the feet and legs is common and normal — here's how to tell it apart from a more serious warning sign.
Mild swelling of the feet, ankles, and hands is extremely common during pregnancy, especially in the third trimester: blood volume rises by about 50%, and the growing uterus presses on the pelvic veins, slowing the return of blood from the legs to the heart.
This swelling often gets worse by the end of the day, in hot weather, or after standing or sitting for long stretches. Elevating the legs, avoiding crossing your legs while sitting, wearing compression stockings, staying well hydrated, and walking regularly generally help reduce it.
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It becomes concerning when it appears suddenly, also affects the face or hands noticeably, comes with rapid weight gain, or occurs on one side only with redness, warmth, and pain (a possible sign of venous thrombosis). These situations warrant a prompt medical evaluation.
Sudden, significant swelling, particularly combined with headaches, visual disturbances, or pain under the ribs, can be a sign of preeclampsia and should be reported to your healthcare provider without delay — which is exactly why blood pressure is checked at every prenatal visit.
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This information is general and does not replace advice from your healthcare professional (doctor, midwife, nurse, pharmacist). Every situation is unique: always check with them before making a decision. In an emergency, call 911 or your local emergency services.
