Medical practice can be a funny thing...

I saw this issue discussed on a recent doco on SBS about the contraceptive pill and its benefits and risks:  

Earlier this month, updated guidelines from the Faculty of Sexual & Reproductive Healthcare (FSRH) indicated that the seven-day break commonly recommended in most contraceptive pill regimens has no health benefits. Under the new guidelines, people taking the pill are free to reduce or stop this pause, allowing them to skip their monthly bleeds.

Understandably, these changes were widely reported by the media, with most reports suggesting an unusual explanation for the original recommendation of the hormone-free break. Speaking to the Telegraph, Professor John Guillebaud, of University College London, said: “The gynaecologist John Rock devised [the break] because he hoped that the pope would accept the pill and make it acceptable for Catholics to use. Rock thought if it did imitate the natural cycle then the pope would accept it.”

The author of this article in The Guardian says that this explanation is a bit fanciful, and that the break was really to reassure earlier users that they were not pregnant.   That does sound a bit more plausible.

Still, as she says, it's remarkable that doctors went many decades without questioning whether the break was the ideal way to use the product.