The Skoptsy (Russian: скопцы) was a Russian christian sect with rather obscure and untraceable origins, which, at its peek in the early 1900’s, had up to 100,000 followers according to some sources. Most scholars would deem as strictly fundamentalistic and fanatical. They were very orthodox, bible-righteous and god-fearing in their religious practice. Their fundamental doctrine of faith was based on the notion that, at the time of the Fall of Man - as Adam & Eve ate the forbidden fruit - the fruits grafted themselves onto the human body in the form of breasts on the women, and testicles on the men.
They believed that human sexuality (bodily beauty, sexual pleasure, the pursuit of attractivity, etc) was the primal evil in the heart of man, and prevented the humans from establishing a direct link between man and God. Thus, the human sexual reproductive organs were seen as the source of human spiritual decay, depravation and fall from grace; this drove the Skoptsy to mutilate their sexual organs. The men most oftenly cut their testicles off, and sometimes also the penis as a whole, and the women cut off their breasts, and also even their labias or other parts of their vulvas.