“…Initially, personalized medicine (PM) was dedicated to oncological patients and focused on knowledge of genes, proteins, and the environment in diagnostics, prophylaxis, prognosis, treatment, and categorization of patients [ 8 ]. This approach gave surprisingly good results in optimizing the therapy in oncology, hence the attempts to use PM in other fields of medicine, including dermatology, endocrinology, cardiology, orthopedics, psychiatry, or in reproductive medicine [ 2 , 9 , 10 , 11 , 12 , 13 , 14 , 15 ]. The implementation of this idea in reproductive medicine offers considerable opportunities, as individual treatment of a specific person or a couple going beyond traditional clinical practice can significantly improve the effectiveness of the treatment [ 4 ].…”