How can i do a self testicular exam does are they soft or hard what do i feel for?

In a warm room so the skin of the scrotum is relaxed to make the exam easier, gently feel the shape and consistency of the testicles one at a time. They should feel smooth, oblong, firm and more or less equal in size. At the back the spermatic cord is attached along with a raised structure called the epididymis. In a few attempts you will become adept. Then check them every two or three months.