Stand in front of a mirror with shoulders straight and arms on hips to look for any visible changes. Raise arms and look for the same changes. Feel breasts while lying down, using a circular motion to cover the entire breast. Repeat the process while standing or sitting, often easier in the shower.
Perform after a warm bath or shower when the scrotal skin is relaxed. Gently roll each testicle between the fingers, feeling for any lumps or changes in size.
Use a full-length mirror in a well-lit room. Check the entire body, including hard-to-see areas like the back and scalp, for any new or changing moles or spots.