This chapter discusses understanding personal gender and sexuality. It notes that sexuality is an integral part of human life at all stages, yet remains a taboo topic. The chapter aims to allow understanding of personal gender and sexuality and open communication about sexuality, which is important for understanding sexual behavior and health. It covers sexual orientation, gender identity, and the development of understanding one's sexuality during adolescence. The chapter also discusses the various types of sexual orientations like asexual, bisexual, gay, lesbian, and questioning. It notes that sexual orientation is influenced by biological and environmental factors and cannot be consciously changed. The chapter emphasizes that sexuality is a natural part of life and discusses aspects of sexual health.