The disclosure relates to a vas deferens valve for contraception for use in a man and for implanting in the vas deferens within the scrotum, enabling the regulating of sperm flow in the vas deferens. There is a manually activated rocker switch which can be activated through the skin of the scrotum and which has a through-channel which, in the opened state, leads from a valve connection piece on the testicular vas deferens to a valve connection piece on the abdominal end of the vas deferens and, in the closed valve state, can be blocked on the end of the through-flow channel which faces the abdominal vas deferens end. The valve additionally has at least one outlet channel which, in the closed state of the valve, leads from the valve connection piece on the testicular end of the vas deferens out of the valve to the outside in the body of the man.
