It was not until the eighteenth century that "onanism" was portrayed as a morbid act of epidemic proportions that produced pox, hair loss, blindness, insanity, impotence and a horrible. Its prevention and treatment warranted diverse and often cruel measures: surveillance, diets, drugs, corsets, electrical alarms, urethral cauterization, clitoridectomy, and labial sewing. This literature's apocalyptic warnings about the personal and social morbidity of "pollution-by-the-hand" are largely unknown to most people today, but the ghostly echoes of these admonitions still inform and preserve the present taboo of the subject.
Why did this apparently innocuous activity become so overpoweringly stigmatized? Why was the eradication of masturbation one of the most important goals of 19th century public hygiene? Why, even after the "sexual revolution," is masturbation still shrouded in shame?