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Conditions

Epididymal Cyst

An epididymal cyst is a smooth, fluid-filled lump found on the testicles. Although some men may worry that they are a sign of cancer or another serious problem, epididymal cysts are in fact benign and thus not a health risk.

The cysts form when fluid builds up in a tube behind the testicles called the epididymis, which stores and transports sperm. It is possible to have more than one cyst at a time and they can appear on both testicles. Up to a third of men are affected by this condition and the cysts can develop at any time in life, although it is most likely to occur in those who are middle-aged.

Epididymal cysts can be very small, but some can grow to the same size as a testicle or even as large as a grapefruit! There are normally no symptoms unless a cyst becomes infected, in which case it may drain fluid and become painful or swollen. Larger epididymal cysts can cause some discomfort, which is usually the reason why some men opt to have them removed. This procedure involves a simple operation to cut the cyst out of the epididymis. However, if a cyst is not infected and does not cause any pain or discomfort, it is not necessary to treat it.

Although epididymal cysts are benign, it is still important to get any new or unusual lumps and bumps in your genital area checked out by a GP.

Watch the Live from the Clinic interactive case video on testicular cysts >

Comments and Questions

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im a female partner. and my partner has Epididymal Cyst. can I get infections tho sex with him?





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when i was young my right testis did not come down so i had an operation to put it in the correct place and it was successful but now problem is the risht testis is swelling some times. it does not happen every day and when it happens its is paining. and after one or two days it will go automatically and then no pain and everything is normal and i am only 20 years old it started happening may be 1 year ago. what is the problem???





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Thanks for all the comments and insights. I am 50 with several cysts that I have probably had for years. I went to the urologist last week because of a hydrocele (nearly 9cm) and they found the cysts with the ultrasound. Going to have surgery on March 31, 2015 to remove/repair all. Will let you know how it goes.





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I'm 64 and I've had a large cyst on one testicle (roughly the same size as the testicle itself) for maybe 30 years. It's caused me no discomfort (except during the urolist exam early on when he squeezed it *really* hard lol). Today my GP recommended an ultrasound which I agreed to mainly out of curiosity. Easy to see one component of US's skyrocketing health care costs: if the ultrasound wasn't covered there is no way I'd self-fund it. (Last comment was off topic; if the diagnosis is anything other than benign I'll post that info here). Guys, the risk of testicular cancer is small, and annually twice as many men die from *breast* cancer!





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i am 30.i had 3mm cyst for 8 months. it is painful.my sperm is very bad smell after it got formed.medicins are not useful.can u help.





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I'm 25 and have had cysts on my left testicle for about 3 years. I went for an ultrasound about 18 month ago and they found 2 small cysts on my left testicle. I'm unaware of the size. My GP gave me these big green tablets to take but they weren't working. I'll be honest and say that I started smoking cannabis for a few month for the pain relief and this helped amazingly well. Had no problems after that up until a couple of weeks ago. The pain is back with a vengeance. I've said to my GP about it but he isn't really interested. He said I've already had an ultrasound and don't need another one but these cysts are affecting my day to day life. I can't sleep at night even taking mirtazapine because its agony when I lie down. When I sit, I need to sit with my legs apart and the longer I walk, the more painful it gets. Is there anything I can do to get this resolved sooner rather than later? Thanks.





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You should see a different GP for a second opinion.

I had my cyst taking out 3 week ago but my testical still bit swallowing . An there hard lumpy bits were the cyst was attached to my testical . Plus I can still see a stitch . Is this normal





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Hi I have just discovered I have 2 cysts one one each side one is 3mm and one 7mm. I only found out as I started getting pain and it gradually progressed over next couple of hours untill it felt like I had been kicked full force in the groin. I am 36 and have been given the choice to get them removed and I'm thinking of getting over and done with. Has any one done the same and how did it go and what is the recovery like. Any advice is much appreciated





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Hope it's not to late for you buddy but yea I've got the same one cyst on each testicle one 3mm and one 7mm ive had them about 4 years if you fiddle with the cyst they get really sore but if left they've never really bothered me I've said no to having them treated but if you go ahead with the op let me know how you get on with I might get them took out just for comfort

It is now 5 days since I had an epididymal cyst removed. It was 5cm in diameter on the ultrasound in July 2013. Had to postpone surgery as I had a bi-lateral inguinal hernia repair done last year. As others have said it is very painful at the moment, codeine and paracetamol not much use. Scrotum very swollen and the colour of a purple plum, as is some of my penis. Am sitting on a pillow as I type this in front of my desk top computer. Surgery was recommended as the cyst was getting painful but at 68 I can do without this thankyou. Next on the list for attention is prostate, something else to look forward to. Since I hit 60 it has been all downhill. Good luck to you if you are having the cyst removal.





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Update to my last post. Now over a week since op, to GP yesterday, wound site looks infected put on antibiotics, wound still oozing blood, mainly at night for some strange reason. Still very sore.

I am suffering last 18 yeas now last 2 years its increase . can you tell me it can any bad effect in my married life? can i become a father in my semen . I have't much more pain in my testis . Awaiting for your valuable opinion. Thanks & Regards,





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It looks like no one else has asked this question, so please fill in the rest of your details below.





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