Yes. It's caused by temporary congestion of blood in the scrotum. The medical term is testicular vasocongestion, but in the locker room you might hear it called "blue balls," since your scrotum can take on a bluish tinge. It goes away naturally in an hour or two if you stop being aroused; if you ejaculate it usually goes away much faster. (For more, read JackinQ&A – Questions About the Male Body.)
Do you find yourself masturbating more often during some seasons than others? Why?
Answer this question | Suggest a question
Answer this question | Suggest a question