Pap Smear

This results in half of all eligible lesbian and bisexual women never having had a smear test, they said.

The human papilloma virus (HPV), which causes most cervical cancers, can be transmitted through lesbian sex.

Cervical cancer charities say all women, no matter their orientation, should have regular cervical screening.

Lesbian, gay, bisexual and transgender (LGBT) groups say women regularly face barriers to accessing healthcare and can have poor experiences when they do.

Even so, there's the undeniable fact - it saves lives.

New research suggests as many as 2,000 women are saved every year in England as a result.

But, experts say it could be many, many more if all women aged 25-64 in the UK took the test when invited - which is normally every three years.

"Sometimes women feel a bit embarrassed or awkward about the whole thing," says Jess Kirby from Cancer Research UK.