Chopart was best known, however, for his pioneering research into urology and urological disorders. Writing in his 1791 book Traité des Maladies des Voies Urinaires, Chopart described the strange case of a French shepherd, whose masturbatory habits led him to cleave his penis into two:
“A shepherd from Languedoc named Gabriel Gallien engaged in acts of onanism [masturbation] from the age of 15, sometimes as many as eight times each day. In time he would persevere for an hour without emission, sometimes only passing blood… He employed his hand for 11 years [but] by his 27th year could only induce a state of constant erection, which he attempted to resolve by introducing a piece of wood, six inches in length, into the urethra…”
Gallien found that inserting and gently pistoning this foreign object in his urethra enabled him to reach orgasm. He maintained this method for another six years until, according to Chopart, the inside of his urethra became “hard, insensitive and calloused”. Gallien was again reduced to a state of constant erection. Being “of total repugnance to women, which is often the case with masturbators” the frustrated shepherd had no means of sexual relief. It was then he took drastic measures:
“In utter despair he took a pocket knife and made an incision in the glans of the penis. This was accompanied by minimal pain but was followed by an agreeable sensation and orgasm and copious emission… Once again able to satisfy his venereal desires, he frequently performed the same operation, with the same result. After carrying out this shocking mutilation perhaps a thousand times, he at length failed. He then divided the penis, by a lengthways incision, into two equal halves, from the opening of the urethra to the symphysis pubis [base of the penis].”
Such a development might have concerned others but Gallien simply tied a ligature around his now two-pronged member. He also kept masturbating, “introducing a thin piece of wood into what remained of the urethra, titillating the seminal ducts and producing an ejaculation”.
He persisted with this method for another ten years until the wood ended up lodged in his bladder, triggering an infection and requiring a hospital visit. Doctors found Gallien’s penis in two halves, both capable of erection. It was then that Gallien was questioned and recounted his tale of self-mutilation in search of self-pleasure.
The dual-pronged shepherd from Languedoc died three months later from a chest abscess. Though probably unconnected, doctors attributed this abscess to almost 40 years of masturbation. Francois Chopart himself died of cholera in 1795.