Re: testicular cancer question
To perform a testicular-self-exam (TSE) its important to first familiarize your self with your body when it is healthy so that you could recognize a change. When and if you do notice a change, its time to go to the doctor for an exam and ultrasound. As cancers go, these tumors grow pretty quickly; untreated they could double in size in under a month. So needless to say, you can't waste time being squeamish about squeezing the Charmin, because time is really of the essence.
If you're right-handed, then place your left hand under your right testicle, lightly supporting it. Next, using your right hand, gently roll that testicle between the thumb and index finger, feeling for anything unusual. It should feel smooth and firm, but not hard. There should not be any bumps or lumps. Repeat for the left testicle. (If you are left-handed, simply reverse hands.)
The best place to perform this is in the bath or shower. The warm water relaxes the structual scrotum and lets you feel the contours of the tesical.
Testicular cancer generally presents as a lump/bump on the testical itself. There is other hardware down there such as the epidydimus and often guys think this is a lump and freak out, however going to the urologist is easier than one would think and if you have questions about anything they are the ones to ask.