Sexual health involves the absence of sickness, malfunction or infirmity, as well as a condition of physical, emotional, mental and social well-being in relation to sexuality. It necessitates a positive and respectful attitude toward sexuality and sexual relationships. It is also related with the ability to have safe sexual encounters without compulsion, prejudice and violence. Sexually transmitted diseases (STIs) or genital infections are the infections spread by sexual activity, particularly vaginal intercourse, anal sex, and oral sex. Viruses, bacteria and parasites that cause STD can be passed from one person to another through sperm, blood, vaginal fluids and other body fluids. Vaginal discharge, penile discharge, ulcers on or around the genitals, and pelvic pain are symptoms and indicators of genital infections. Some of the most common genital infections include herpes infection, human papillomavirus infection, chlamydia, hepatitis B, gonorrhea, syphilis and HIV/AIDS. This book is compiled in such a manner, that it will provide in-depth knowledge about sexual health and genital infections. Those in search of information to further their knowledge will be greatly assisted by it.