A technique that enables a man to detect changes in the size and shape of his testicles and evaluate any tenderness. Each testicle is examined separately and in comparison with the other. The best time to perform the test is just after a warm bath or shower, when the scrotal tissue is relaxed. The man places his thumbs on the anterior surface of the testicle, supporting it with the index and middle fingers of both hands. Each testicle is gently rolled between the fingers and thumbs and carefully felt for lumps, hardness, or thickening, esp. as compared with the other testicle. The epididymis is a soft, slightly tender, tubelike body behind the testicle. Abnormal findings should be reported immediately to a health care professional.