Most cases cannot be prevented. Sports safety guidelines should be followed for children, adolescents, and adults.
The cyst can rupture, causing pain and swelling in the calf. The cyst can also slowly get bigger, which may worsen symptoms. This is especially common in people with rheumatoid arthritis. The cyst is not a cancer and is not life-threatening.
There are no risks to others, as this condition is not contagious.