Lumps in the testicles are very common in boys and young men and it is important to remember that the vast majority of these are non-cancerous and do not need any treatment.

It is important to see your GP if you notice a lump or swelling in your testicles or if there is any change in shape in the testicles. It is often best to feel for changes when the scrotum is relaxed such as during a warm shower. However, even though it is important to check now and then, there is no benefit by checking in a set way at a set time of the day. It is good to be aware of the normal shape and size of your testicles but examining yourself consistently is unlikely to be helpful. Follow the link for a resource on how to thoroughly examine your testicles yourself

There are a number of non-cancerous causes for lumps or swellings in the testicles which can be found in the link

If you get a sudden severe pain in your testicles you should attend A&E immediately. It could mean that your testicle has twisted and is not getting oxygen. You will be examined by a doctor urgently.

Testicular cancer is the most common cancer in young men 15-49 years. It often starts with a new lump or swelling in one of the testicles (remember most lumps or swellings are non-cancerous but important to get checked). When you see your GP, the doctor will examine your testicles. After the examination, the doctor might refer you for an ultrasound scan of the testicles or straight to a specialist.