**6. Summary**

In spite of huge achievements both in reproductive surgery and assisted reproductive technologies, endometriosis as a disease is very actual today. It is known that the number of ART centers has been increased recently, the majority of which do not have facilities to perform surgery. This fact seems quite controversial. It resulted in the situation when the importance of reproductive surgery is neglected. Most of the studies are originally oriented to a recognition of ART as a major method of infertility treatment. We think this practice leads to the loss of reproductive surgery quality and professional degradation. Spontaneous pregnancy rate occurs in 30–70% infertile patients after an adequate operation performed just in time. That means one- or two-thirds of patients with endometriosis-associated infertility do not need ART at all. However, surgery is not the only possible kind of infertility treatment. It is important to diminish the number of the second (third, fourth, etc.) surgery. The reproductologist should be involved in the treatment and ART could be recommended promptly. The best option is to find a balance between surgery and ART, which could be reached through the organization of the multidisciplinary team, "brother in arms" professional connections between the surgeon and the reproductologist. Only working together with a constant search of the best solution on how to reach the pregnancy and informing the infertile patient about all ways of the treatment could lead to success.
