Women’s rights groups are warning of ever more male-to-female trans detainees serving time in women’s prisons, despite rising incidents of rape and other horrors in what were once women-only cellblocks.

They point to more cases of trans women — including powerful individuals with penises who are attracted to females — sexually abusing and harassing women inmates in New York, Illinois, California, New Jersey, Washington and beyond.

A full picture of trans prisoners is not available, but data obtained by DailyMail.com from federal and California officials indicates more trans male-to-female inmates, more transfer requests, and more pressure on wardens to approve them.

Some transfer requests are made in good faith, but by lowering entry requirements, officials are letting some fakers serve their time in cushier women’s wings, where they can imperil female inmates.