Ken Jones, a leading amateur microscopist, specialises in video-filming pond-life. One of his videos captures the enigmatic and graceful movement of Volvox, and he has kindly allowed us to show some extracts from his film on this page. A single Volvox colony spins through the dark waters of a pond. Daughter cells are just visible inside. Micscape Editor's note.
Heart, liver, or kidney disease. Sometimes swelling can indicate a problem such as heart, liver, or kidney disease. Ankles that swell in the evening could be a sign of retaining salt and water because of right-sided heart failure. Kidney disease can also cause foot and ankle swelling.
What causes swollen ankles? Excessive standing or walking can cause swollen ankles, but so can more serious conditions if ankles stay swollen. For examples, pregnancy commonly causes swollen ankles. But if it is sudden and the swelling is excessive, it could be a sign of preeclampsia. Also, if you have injured your foot or ankle, swelling can occur.