Incorrect use of menstrual cups could be resulting in some women suffering pelvic organ prolapse, the Victoria Derbyshire programme has been told.

Axar.az reports citing foreign media.

The Chartered Society of Physiotherapy wants some manufacturers to include better safety advice.

Menstrual cups fit into the vagina and collect period blood. They are not currently regulated in the UK, and there is no safety testing.

The government said the NHS was improving pelvic health clinic access.

Menstrual cups, which can last up to 10 years, have grown in popularity as a more sustainable alternative to single-use tampons and pads.

But there are claims that more education is needed before women decide to use them.

One woman, Jenny, told the BBC's Victoria Derbyshire programme she believed menstrual cups were responsible for her minor pelvic organ prolapse, after she had used them for three months.

"I was scared and I was worried," she said. "I didn't know what it might mean in the long term."