Somehow we missed an article in last year’s Contraception, a magazine we read over morning coffee and brioche, that presented findings of a study that tried to identify why condoms break. Beside analyzing broken samples and questionnaires asking those with first hand experience, the researchers from SSL International, manufacturers of Durex brand condoms, used a painful looking “coital model” to identify “blunt puncture” as the cause of breakage. The blunt puncture action turns out to be when “the tip of the thrusting male penis progressively stretches one part of the intact condom wall until it ultimately breaks.”
Picture of the Coital Model is hidden under the drape below.
Abstract: Male condoms that break in use do so mostly by a “blunt puncture” mechanism.
(hat tip: NCBI ROFL via Gizmodo)