The orgasmic sensations — which occurred in her left foot — were sudden, not brought on by sexual desire or thoughts, and occurred about five to six times a day, the report said. The sensation traveled up her left leg to her vagina, and she said the experience felt exactly like an orgasm achieved during sex.

These orgasms were very embarrassing and worrying to the woman, said study author Dr. Marcel D. Waldinger, who treated the woman and is a neuropsychiatrist and professor in sexual psychopharmacology at Utrecht University in the Netherlands.

“She felt terrible about it,” Waldinger said.