Experts have warned that china could suffer from a sex imbalance in the not to distant future because of an increasing crime rate, a growing demand for pornography and illegal marriages. Currently, there are about 18 million more males of marrying age than females, and a report has estimated that by 2020, males between the ages of 20 and 45 will outnumber their female counterparts by 30 million. At the moment, 119 boys are born for every 100 girls in China, Jiang Chunyun, director of the China Family Planning Association, one of the country's largest non-governmental organizations, was cited as saying by the report. The international average ratio is between 103 and 107 boys for every 100 girls. Zhang Weiqing, head of the National Population and Family Planning Commission, said the gender imbalance has been evident since the 1980s, giving China the world's most serious gender discrepancy. Zhai Zhenwu, the dean of School of Sociology and Population Studies at the Renmin University of China, told the China Daily: "If a gender imbalance occurs in one or two age groups, it can be adjusted. But when it stays and gets worse, the issue could become irreversible." He blamed the imbalanced sex ratio on the traditional preference for male heirs, the availability of gender testing of fetuses with ultrasound and backward social security scheme in rural areas. The sex discrepancy is highly visible in remote and poor areas, he said. Zhai said the government was addressing the problem with education, subsidies and a strict regulation of ultrasounds and abortions. He also called for a more positive attitude toward women. Source: ANIJAY/B << A New Chemical Compound Identified in Male Blue Crabs Dogs: Man's Best Friend or a Menace? >> Recommended Reading Divorce: Pros and Cons Divorce can be traumatic for children and create a sense of insecurity amongst them. Couples should realize that joined parenting is important even after divorce. READ MORE How to Save your marriage You can save your marriage - even when your partner insists on a divorce. READ MORE Is Life Better Staying Single or Getting Married? The stigma linked to staying single is gradually disappearing. More people opt to stay single and many even claim to be happier. But there are both advantages and disadvantages to staying single. READ MORE Prostitution: Fresh Stakes in the Oldest Trade Prostitution has broadened its base to include street prostitution, massage brothels, gigolo outcall services, strip clubs, lap dancing, phone sex, child prostitution and sex tourism. READ MORE Safe Sex Sex is fun but involves health risks such as sexually transmitted diseases (STDs or unplanned pregnancy specially in those who have multiple partners or in those having unprotected sex. READ MORE Most Popular on Medindia Color Blindness Calculator Drug Side Effects Calculator Sinopril (2mg) (Lacidipine) More News on: Sex FactsProstitution: Fresh Stakes in the Oldest TradeHow to Save your marriageSexual Intercourse FactsSafe SexTop Ten Trivial Sex FactsTop Ten Sex Tips for MenDivorce: Pros and ConsSex NumbersIs Life Better Staying Single or Getting Married?