Hydroceles don't often cause symptoms. Even though the swelling may worry new parents, it does not bother a baby and often goes away in the first year. In older males a hydrocele is most often painless, but may cause some pain due to the increased size of the scrotum.
What are the Signs of a Hernia?
Only about 25% of hernias cause pain. If the bulge forms where the thigh and groin meet, it can often be seen and felt. If the bulging intestine enters the scrotum, it can cause pain and/or swelling.