Editor’s note: most of the men on condoms must not feel strange, now almost everyone is the preferred supplies of condoms contraception, but you sure you use condoms really suit your SIZE? The condom is too large or too small, will bring many negative effects, too high it is easy to fall off, cause contraceptive failure, but too small it will not only cause rupture caused by the contraceptive failure, but also may cause some irreversible damage to the penis, so choose according to their sizes of condoms is very necessary. According to a 2013 survey, half of young adults in Sweden did not use condoms when they were associated with new partners. In Sweden there may still be 30% of people who do not use contraception. The survey was made by the Swedish sex association as their annual ‘condom check’ time. Survey: 25% of the Swedish people will use condoms. In the 21-35 year old young people, 50% of people said they don’t have a condom. A Swedish clinic in order to promote condom to encourage young Swedish men safe sex, launched special measurement services, to help people choose the right sized condoms.