Swollen ankles and swollen feet are common and usually not cause for concern, particularly if you have been standing or walking a lot. But feet and ankles that stay swollen or are accompanied by other symptoms could signal a serious health problem. WebMD looks at some possible causes of foot and ankle swelling and offers advice on when to call the doctor.
Pregnancy complications. Some swelling of the ankles and feet is normal during pregnancy. Sudden or excessive swelling, however, may be a sign of preeclampsia, a serious condition in which high blood pressure and protein in the urine develop after the 20th week of pregnancy. If you experience severe swelling or swelling accompanied by other symptoms such as abdominal pain, headaches, infrequent urination, nausea, and vomiting, or vision changes, call your doctor immediately.