Pre-marital sex is sexual intercourse engaged in by persons who are not married to each other (Thomson, 1938). It is generally used in reference to individuals who are presumed not yet of marriageable age, or between adults who will presumably marry eventually, but who are engaging in sexual activity prior to marriage (Lucas, 2000; Ramesh, 2008 and Barbra et al,2001). In many cultures in Asia, pre-marital sex is banned to prevent unwanted pregnancy in women while in India pre-marital sex is culturally wrong, but recently it was legalized by the Supreme Court due to the influence of the western culture (Perkins et al, 1998).
Pre-marital sex is sex before marriage and it is generally found among the adolescent. It involves fornication, rape, defilement and incest. The causes behind it have been established including curiosity among the adolescent, proof of manhood, lust, pornography and its adverse effects, insanity and sex promiscuity as well as moral decadence among the student youths (Choe et al, 2004).
Worldwide, rates of sexually transmitted diseases (STDs) among the school students are soaring: one-third of the 340 million new STDs each year occur in people under 25 years of age (Fernández et al,2010). Each year, more than one in every 20 school youth contracts a curable STDs. More than half of all new HIV infections occur in people between the ages of 15 to 24 years. The sexual health needs for the student girls who are generally overlooked, Stigma and vulnerability affects particular groups of men as well as women.

In Nigeria, over 35 million secondary school students are aged 10–19 years, making sexual abstinence among adolescents a critical preventative strategy against human immunodeficiency virus (HIV) infection in a country where 3% of 15- to 19-year-olds are HIV positive.
From an international perspective, any study on the sexual health of Nigerian