My 20 year old son has a tiny lump in his testicle, he also has some groin pain and a hard enlarged lymph node, he has experienced a heavy, dragging pain in his testicle.  GP referred him to a urologist who said it was most likely a cyst but did blood tests to check for tumour markers and requested and ultrasound which is on Wednesday. My son has said he is feeling much better apart from the lymph node, he thinks the testicle lump has gone down and he doesn’t want to waste NHS time by having a scan if he is feeling better...personally I think he’s being irresponsible with his health and he should have the scan. Any opinions on this would be greatly appreciated.