The most common causes of swollen ankles in women are bad posture, kidney disease and lower extremity venous thrombosis. 1. Bad posture: If patients keep a posture for a long time due to work or other reasons, it is easy to cause poor blood circulation in the lower limbs, which leads to swelling of the ankles in female patients, and the symptoms can be relieved by changing the position and resting in time. 2. Kidney disease: if the patient has kidney disease, such as chronic nephritis, glomerulonephritis, etc., it is easy to cause the decline of renal function and weakening of drainage capacity, which will lead to swelling of ankles of both lower limbs. 3. Lower extremity venous thrombosis: Due to various reasons of poor blood return to the lower extremities and hypercoagulability, thrombosis of the lower extremity veins can induce ankle swelling in women. There are many reasons for women’s ankle swelling, and it may be related to heart failure, malnutrition, etc. If the symptoms continue without relief, it is recommended to go to the hospital in time to find out the cause of the disease, and the doctor will target treatment.