What is it?          

Epididymo-orchitis is a condition that is usually caused by infection and inflammation in the epididymis and/or testicle and can present itself with pain and swelling in the scrotum.  Epididymitis means inflammation of the epididymis. This is the structure which lies behind the testicle and is involved in storing and transporting sperm made in the testicle. Orchitis means inflammation of the testicle. As both structures are so close together, it is often difficult to tell if the epididymis, testicle, or both are inflamed, which is why the term epididymo-orchitis is frequently used.

How do I get it?               

It is not always related to a STI. 

Signs and Symptoms     

The most common symptoms are pain and swelling in one, or sometimes both, testicles and/or epididymides. Symptoms can come on quite quickly and be associated with scrotal swelling and redness. Some men also develop discharge from the tip of the penis and some experience pain when passing urine. As with any infection you may also feel generally unwell and develop a high temperature


Epididymo-orchitis is diagnosed after a medical assessment, which includes a sexual health screen (for chlamydia and gonorrhoea) and urine tests.



Epididymo-orchitis is treated with antibiotics that cover the most likely cause of the infection. Some of the antibiotics are given as an injection as well as tablets.