Action de la Bicyclette sur les Organes Génito-Urinaires
Contents
- States that while cycling's effect on the heart and lungs has been much debated, its effect on the genito-urinary organs has been neglected; the thesis will cover complications in men and women (Part One) and the role of saddle design and riding position (Part Two), deliberately excluding urethral rupture cases as too rare and non-specific to cycling.
- Covers nervous, genital and urinary complications of cycling in men, perineal numbness, unwanted erections, urinary retention and pollakiuria, urethritis flare-ups in men with prior gonorrhea, and effects on the prostate, bladder and kidneys, concluding cycling generally acts as a provoking rather than a root cause, with saddle shape and the rider's nervous predisposition the deciding factors.
- Dr Lamouroux's case: a professional racer riding saddles with a sharply raised nose repeatedly develops tingling and near-complete numbness of the penis and perineum lasting up to an hour.
- De Pezzer's case: an electrical engineer must dismount hourly to massage his perineum, his circulation seeming to stop and his genitals going numb.
- De Pezzer's case: another cyclist must periodically dismount or lean back off the saddle to avoid becoming completely numb.
- De Pezzer's case: a 58-year-old merchant suffers sudden urinary retention one evening after a tiring ride, later found to have a small developing anal abscess; both resolve together within days.
- Dr Gérard's case: a young Dijon lawyer, after a strenuous night ride up the Val-de-Suzon hill, cannot urinate at all and only passes a few burning drops on reaching his destination; resolves the next day with rest and a hot bath.
- De Pezzer's case: a cyclist riding from Paris toward Mantes cannot urinate on dismounting; no catheterization is needed and bladder function returns within 24 hours of rest.
- Dr Lamouroux's case: a 28-year-old infantry lieutenant develops a thin urine stream and induration along the urethra from riding a springless racing saddle, resolving after he switches to a wider, grooved saddle.
- De Pezzer's case: a colleague develops canal pain and frequent urination whenever riding an unfamiliar saddle, with no discharge, illustrating pollakiuria provoked by an ill-fitting saddle.
- Reported by Dr Masson (via Aldhuy's Lyon thesis): a man with recently treated gonorrhea develops bladder-neck cystitis with bloody urine after long rides, improving with rest and a saddle change but relapsing whenever he rides again.
- Professor Rollet's case (Lyon Médical, 1895): a 30-year-old man's chronic gonorrheal urethritis flares to an acute attack after a forced ride around Lake Geneva, resolving with potassium-permanganate irrigation once cycling stops.
- Damain's case: a racing cyclist's three-month urethritis, resistant to all treatment, clears only six weeks after he abandons cycling entirely.
- De Pezzer's case, treated by Dr Guyon at Necker hospital: a 22-year-old traveling salesman with chronic gonorrhea develops a urinary abscess and perineal fistula from heavy cycling, cured by external urethrotomy.
- Dr Rafin's case (Lyon Médical): a chemist with recurrent gonorrhea develops a urethral stricture and abscess after a 12km ride, treated by internal urethrotomy and months of progressive dilation.
- Covers the same categories of complication in women, largely dismissing claims that cycling routinely causes masturbation (arguing the sewing-machine analogy is false and that willpower, not the machine's mechanics, is the deciding factor), then frequent urination, superficial vulvar irritation, and effects on menstruation and uterine position.
- De Pezzer's case: a young woman, Mme B..., develops painless frequent urination along with swollen, bruised-looking labia shortly after taking up cycling; cured by rest.
- De Pezzer's case: a young woman develops frequent urination three months into cycling, attributed to mild urethritis/cystitis; improves once she stops riding.
- Sécheyron's case (Bulletin de la Société de médecine de Toulouse): a 35-year-old mother develops painful cystitis with bloody urine after a cycling apprenticeship spread over several days; recovers with rest, salol, and an unrelated curettage for hemorrhagic metritis.
- De Pezzer's case (via Dr Déclat): a young woman develops itching and hardened, thickened labia from saddle friction, resolving with rest and local baths.
- Reported via Dr Rengade to Aldhuy's Lyon thesis: a 32-year-old woman riding a men's tricycle saddle in 1891 develops painful, swollen labia after her first sessions, resolving within three days of stopping.
- The author's own case: a 24-year-old woman develops burning vulvar pain spreading to the groin and inner thighs after her third bicycle outing; erythema and dry, tender vulvar mucosa are found on examination, resolving quickly with cold antiseptic lotions.
- Surveys acute perineal trauma from falls, onto the saddle nose versus astride the rear wheel or frame, noting such injuries are rarer and much milder than equivalent horse-riding injuries, then reviews the history of saddle design culminating in the new "anatomical" saddles with two separated ischial cushions and a reduced or absent nose, and recommends an upright riding position with the seat set back from the pedals.
- Concludes that nervous symptoms are uncommon and pressure-related; that retention and pollakiuria are provoked rather than caused by cycling, depending on the rider's nervous predisposition and saddle design; that old or undertreated urethritis can be reawakened by riding; that prostate and bladder disease contraindicate cycling while kidney/gout patients may benefit in moderation; and that claims of routine female masturbation from cycling have been greatly exaggerated.
- Lists the thesis's sources, including De Pezzer's five-year run of case reports in the Annales des organes génito-urinaires, Aldhuy's 1895 Lyon thesis on perineal trauma in cyclists, and society-discussion sources such as the Société d'hygiène debates and the 1895 Figaro saddle competition.