The rise in older people getting divorced and finding new partners online could be putting a strain on sexual health clinics, new figures suggest.

The number of visits to clinics has risen by 13 per cent in the past four years from 2.9 million appointments a year to 3.3 million.

Tests for chlamydia, gonorrhoea, syphilis and HIV have also risen by a fifth.

Experts believe the increase is due to reduced stigma surrounding testing, alongside the rise of divorce and internet dating which has led to more people wanting to get tested.