Historically, infertility is considered as a plague, a curse and it motivates both the interest of scientists as well as charlatans. Considered an exclusively female pathology, it has been the subject of countless speculation as to its etiology. This symptom causes indeed imaginary and contrasting attitudes depending on the societies and eras, and the narrative of patients reveals the legacy of myths, taboos and prohibitions still present in our collective unconscious. What surprises is the persistence of the irrational in an area marked by considerable scientific advances. But we will see, through the clinical history of Susan, that in this particular context, the irrational allows a mythological construction that defines and protects the patient's identity.