There is provided a method for controlling a flow of eggs in a uterine tube formed by a uterine tube wall of a patient. The method comprises gently constricting (i.e., without substantially hampering the blood circulation in the uterine tube wall) at least one portion of the uterine tube wall to influence the flow of eggs in the uterine tube, and stimulating the constricted wall portion to cause contraction of the uterine tube wall portion to further influence the flow of eggs in the uterine tube. The method can be used for restricting or stopping the flow of eggs in the uterine tube, or for actively moving the fluid in the uterine tube, with a low risk of injuring the uterine tube.