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.
Swelling in the legs and ankles is caused by fluid accumulation in the body, which can be a sign of worsening heart failure. You may feel that your shoes are tighter than normal if swelling in this area is increasing.