In this work, the heuristic potential of feminist epistemology is recovered to question hegemonic tendencies in the construction of anthropological knowledge around certain frameworks of epistemic and visual cultures that have effects on the configuration of the fetus as a patient. This fact is not accidental or innocent; on the contrary, it has had important consequences in the medical-technological intervention in the bodies of pregnant women and in the delimitation of the legal limits of abortion. The visibility of the fetus in early stages of gestation has led, not only to the diagnosis of illnesses, but also to being the subject of therapeutic intervention above the body of the pregnant woman, as an epiphenomenon. Paying attention to the androcentric and ethnocentric biases that permeate observation technologies (ultrasound) and fetal surgery, implies perceiving the power and control relationships that these technologies involve not only over procreation, but also over the woman subject.