TESTICULAR PAIN AND SWELLINGS
About testicular lumps and swellings
Lumps and swellings in the testicles are a relatively common symptom in boys and men, and can have a number of different causes.
The vast majority of testicular lumps and swellings are caused by benign (non-cancerous) conditions that may not need treatment, but it's important to know what's normal for you and to see your GP if you notice any changes in your testicles so they can try to identify the cause.
What causes testicular lumps and swellings?
There are many possible reasons why your testicles may become swollen or develop a lump. Some of the main causes are:
varicoceles – swellings caused by swollen and enlarged veins within the scrotum
hydroceles – swellings caused by a build-up of fluid around the testicle
epididymal cysts – lumps caused by a collection of fluid in the epididymis (a coiled tube behind the testicles)
epididymo-orchitis – inflammation of the epididymis and testicles
inguinal hernias – where fatty tissue or a part of your bowel pokes through into your groin, which can cause the scrotum to become enlarged
A sudden and severely painful swelling in one of your testicles can be a sign of a condition called testicular torsion, which is where the blood supply to a testicle is interrupted.