Most hydroceles are present at birth. Between 1 and 2 percent of newborns have a hydrocele. Babies who are born prematurely have a higher risk of having a hydrocele.

In men, hydroceles mostly affect men over the age of 40. Risk factors for developing a hydrocele later in life include:

  • Scrotal injury
  • Infection, including sexually transmitted infections (STIs)
Oct. 09, 2014