The best time to have a testicle massage is after a warm bath or shower, when the skin of the scrotum is relaxed. Support the scrotum and testicles in the palm of your hand, to feel their weight. One testicle may be slightly larger than the other, but they should be about the same weight. Stand in front of a mirror, look for any signs of swelling in the skin of your scrotum. Feel each testicle for any unusual lumps or swellings. To do this, place your index and middle fingers on the bottom of one testicle, with your thumb on the top; then gently roll the testicle between your fingers. Examine your other testicle in the same way. Don’t be surprised to discover that one testicle is slightly larger than the other. That’s normal. Healthy testicles are smooth, oval-shaped, and rather firm. Most lumps are found on the side of a testicle, but they can also show up on the front, so check the whole testicle carefully. If you have any worries contact your G.P.