We knew Japan's sex problem was bad. But not this bad.

Nearly half of Japanese people are entering their 30s without any sexual experience, according to new research.

The country is facing a steep population decline as a growing number of youngsters abstain from sex and avoid romantic relationships.

Some men claimed they “find women scary” as a poll found that 43 per cent of people aged 18 to 34 from the island nation say they are virgins.

One woman, when asked why they think 64 per cent of people in the same age group are not in relationships, said she thought men “cannot be bothered” to ask the opposite sex on dates because it was easier to watch internet porn.

The number of births dropped below one million in Japan for the first time last year, according to the Ministry of Health, Labour and Welfare.