[Gall-bladder troubles and oral contraceptives (author's transl)].

On the basis of about one hundred and fifty cases, the authors study the effect of oral contraceptives on the gall-bladder. After having showed their results, they discuss the mechanism of the action of oral contraceptives on the gall-bladder, showing their favouring effect on gallstones and pointing out the delay in gall-bladder emptying induced by them.