Definition of 'swarm'. swarm. A swarm of bees or other insects is a large group of them flying together. When bees or other insects swarm, they move or fly in a large group. A dark cloud of bees comes swarming out of the hive. When people swarm somewhere, they move there quickly in a large group. People swarmed to the shops, buying up everything in sight. A swarm of people is a large group of them moving about quickly. A swarm of people encircled the hotel. Today at the crossing there were swarms of tourists taking photographs. Synonyms: multitude, crowd, mass, army More Synonyms of swarm
Hepatic cysts can occur as a result of polycystic liver disease. Polycystic liver disease is exactly as it sounds: the disease causes a large number of cysts to occur in the liver. Polycystic liver disease is a congenital disease caused by a genetic abnormality.
What causes simple kidney cysts? The cause of simple kidney cysts is not fully understood. Obstruction of tubulesâtiny structures within the kidneys that collect urineâor deficiency of blood supply to the kidneys may play a role. Diverticulaâsacs that form on the tubulesâmay detach and become simple kidney cysts. The role of genetic factors in the development of simple kidney cysts has not been studied. What are the symptoms of simple kidney cysts? Simple kidney cysts usually do not cause symptoms or harm the kidneys. In some cases, however, pain can occur between the ribs and hips when cysts enlarge and press on other organs. Sometimes cysts become infected, causing fever, pain, and tenderness.