He was also accused of performing clitoridectomies without the consent or knowledge of his patients or their families. In 1867 he was expelled from the Obstetrical Society of London for carrying out the operations without consent. Baker Brown's ideas were more accepted in the United States, where, from the 1860s, the operation was being used to cure hysteria, nymphomania, and in young girls what was called "rebellion" or "unfeminine aggression". Lewis Sayre, New York orthopedic surgeon, became a prominent advocate for circumcision in America. In 1870, he examined a five-year-old boy who was unable to straighten his legs, and whose condition had so far defied treatment. Upon noting that the boy's genitals were inflamed, Sayre hypothesized that chronic irritation of the boy's foreskin had paralyzed his knees via reflex neurosis. Sayre circumcised the boy, and within a few weeks, he recovered from his paralysis. After several additional incidents in which circumcision also appeared effective in treating paralyzed joints, Sayre began to promote circumcision as a powerful orthopedic remedy. Sayre's prominence within the medical profession allowed him to reach a wide audience. As more practitioners tried circumcision as a treatment for otherwise intractable medical conditions, sometimes achieving positive results, the list of ailments reputed to be treatable through circumcision grew. By the 1890s, hernia, bladder infections, kidney stones, insomnia, chronic indigestion, rheumatism, epilepsy, asthma, bedwetting, Bright's disease, erectile dysfunction, syphilis, insanity, and skin cancer had all been linked to the foreskin, and many physicians advocated universal circumcision as a preventive health measure. Specific medical arguments aside, several hypotheses have been raised in explaining the public's acceptance of infant circumcision as preventive medicine. The success of the germ theory of disease had not only enabled physicians to combat many of the postoperative complications of surgery, but had made the wider public deeply suspicious of dirt and bodily secretions. Accordingly, the smegma that collects under the foreskin was viewed as unhealthy, and circumcision readily accepted as good penile hygiene. Secondly, moral sentiment of the day regarded masturbation as not only sinful, but also physically and mentally unhealthy, stimulating the foreskin to produce the host of maladies of which it was suspected. In this climate, circumcision could be employed as a means of discouraging masturbation. All About the Baby, a popular parenting book of the 1890s, recommended infant circumcision for precisely this purpose. (However, a survey of 1410 men in the United States in