More than 70 per cent of Chinese teenagers get their information about sex from internet pornography, according the country's state media.

The China Daily has reported that, since there is a lack of sex education in the classroom or at home, Chinese teenagers are picking up their knowledge from adult websites.

The survey, which identified online porn as the main information source, showed that just 1.7 per cent acquire most of their sex education in school.

Even fewer, 1.3 per cent, said that their parents had provided them with any useful knowledge about sexual matters.

Health experts have now expressed fears that Chinese children might get the wrong idea about sex by viewing the porn sites.