One foot swelling during pregnancy: what to know

Pregnancy can increase fluid retention and pressure on veins, often affecting both feet. Swelling on only one side is less typical and may follow a knock, sprain, prolonged standing, tight footwear, or irritation around the foot and ankle. A swollen foot with warmth, redness, calf pain, or tenderness can point to a clot and should not be self-diagnosed. A recent fall with marked pain or difficulty bearing weight may need assessment for a fracture, such as a distal radius fracture only when the wrist was injured, not as an explanation for foot swelling.

Remove tight shoes and rings, rest with the foot raised, and change position regularly. Gentle ankle movement can reduce stiffness if it does not increase pain. Keep normally hydrated and avoid starting water tablets or anti-inflammatory medicine without advice from your maternity clinician. Compare both feet for colour, warmth, tenderness, and how quickly the swelling appeared. Note any recent travel, injury, new medicine, or long period of sitting so the clinician has useful context.

Contact your maternity team promptly for new one-sided swelling, especially if it is increasing or accompanied by pain, warmth, redness, or calf tenderness. Seek emergency help for breathlessness, chest pain, faintness, coughing blood, severe headache, vision changes, or sudden swelling of the face and hands. These symptoms need urgent evaluation rather than home treatment.

Could this pattern be normal pregnancy swelling or does it need testing? Which symptoms should make me return urgently? Is movement, compression, or a particular position suitable for me?