Epididymitis is where the tube (the epididymis) at the back of the testicles becomes swollen and painful. It is often caused by an infection and is usually treated with antibiotics.

Symptoms of epididymitis a sudden or gradual pain on one or both of your testicles, a tender or swollen feeling scrotum, or a build-up of fluid around the testicles, that feels like a lump or swelling. Other associated symptoms can include difficulty peeing and a white, yellow, or green discharge from the tip of the penis.

Epididymitis is usually caused by a sexually transmitted infection such as chlamydia or gonorrhea. It is more common in men under 35 years old. It can in some rare cases be caused by a urinary tract infection. A UTI is more common if you have an enlarged prostate gland, a urinary catheter, or have recently had surgery to the groin, prostate gland, or bladder.

Treatment for epididymitis will depend on the cause. If you have an infection, you will be prescribed antibiotics. You should start to feel better within a few days, but it may take up to two weeks to fully recover. You can take over the counter pain medications to help ease the pain, hold an ice pack on your groin and it is advised to wear underwear that supports your scrotum.