Treatment options for swollen testicles, or orchitis, include antibiotics, over-the-counter nonsteroidal anti-inflammatory drugs and ice packs, according to WebMD. Elevating the scrotum with an athletic supporter is also a way to treat swollen testicles.
The most common cause of swollen testicles is bacteria, such as Streptococcus or Staphylococcus, explains WebMD. Sometimes a prostate infection occurs at the same time as orchitis, and in some cases, the same bacteria that causes sexually transmitted diseases, such as chlamydia and gonorrhea, can cause the condition. Men who have many sexual partners or who practice unprotected sex are at higher risk of developing this condition.
Viruses, such as the one that causes mumps, may also cause swollen testicles, and this is most common in boys younger than 10, states WebMD. Approximately a third of boys who have mumps develop swollen testicles and end up with shrunken testicles as a result. Others who are at high risk for orchitis include men who have not received vaccinations for mumps, men who get frequent urinary tract infections and men who are older than 45. Frequent catheter use can also cause the condition.
Men with swollen testicles may experience other symptoms too, including pain, tenderness and redness around the testicles, reports WebMD. Additional symptoms include blood in the semen, a heavy feeling, nausea, vomiting and groin pain.