Researchers have suggested that badly-fitted condoms not only reduce the pleasure of sex for men and women, but also increase the risks of infection and pregnancy.

A study involving 436 men discovered that 45% had used ill fitting condoms in the previous three months with a female partner, being more than twice as likely to report the condom breaking or slipping, leading to difficulty in reaching orgasm for both sexes.

In addition, these were also five times prone to experience irritation of the penis and report inadequate sexual pleasure both for themselves and their female partner.

UK experts revealed that men should know condoms are available in different shapes and sizes. Condom use is increasing in popularity, now competing with the Pill as a form of contraception, according to a recent poll.

The study also reveals that condom use also poses an adverse effect on erections, with men around twice as likely to say its use poses interference during erection or caused erection loss.

The study, published in the journal Sexually Transmitted Infections, concluded, "Men and their female sex partners may benefit from public health efforts designed to promote the improved fit of condoms".