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'''{{FULLPAGENAME}}''' , also called '''"cum"''', is the fluid discharged at [[ejaculation]] by the male. Semen of an adult is a thick, yellowish-white, viscid fluid containing sperms; a mixture produced by secretions of the testes, seminal glands, prostate, and bulbourethral glands.<ref>{{REFweb

The onset of semen production occurs about a year after the start of [[puberty]]. Semen produced by immature pubescent males is usually of a clear color. It becomes milky-looking with increasing maturity.