FSHR and Hypergonadotropic hypogonadism: We present the case of an elite athlete with the c.2039A>G variant in one allele of the FSHR gene resulting in hypergonadotropic hypogonadism, low testicular volume, and reduced semen parameters, placing particular emphasis on the diagnostic process and the importance of correct diagnosis in the context of possible treatment with gonadotropins, which can significantly improve fertility, increase testosterone levels, and, in the case of athletes, obtain approval from the anti-doping organization for treatment that increases testosterone levels.