An infusion pump is disclosed comprising control unit, container, actuation unit and detection unit. The container can store medicinal liquid for treating hypogonadotropic hypogonadism. The control unit can receive external control signal comprising infusion interval, concentration of medicinal liquid and dose of medicament for treating hypogonadotropic hypogonadism at each infusion. The control unit is configured to activate actuation unit based on infusion interval to cause medicinal liquid to flow out of container. The detection unit can detect output of medicinal liquid from container and feed it back to control unit. The control unit is configured to activate actuation unit based on dose at each infusion, concentration of medicinal liquid and fed-back output of medicinal liquid. According to the invention, sustained, automatic infusions of the medicament for treating hypogonadotropic hypogonadism are allowed without patient intervention. As a result, intelligent infusion of medicament is achieved in an easy and efficient manner.