Testosterone undecanoate gel pills are mainly used to treat declining sexual function in men, including poor erectile function and declining testicular function. The purpose of testosterone undecanoate pills is so that the patient can have a normal sex life and can have normal ejaculation. It is generally believed that testosterone undecanoate gel pills have no significant effect on male sperm and will not lead to malformations or abnormalities in the fertilized egg in the future? If uncomfortable symptoms occur after using testosterone undecanoate gel pills, it is recommended to visit the hospital in time and take appropriate measures for treatment.