The document discusses genital tract development and puberty as well as associated disorders. It covers the embryology of the genitourinary tract and defines puberty. It then examines precocious and delayed puberty, their causes, investigations, and treatments. Developmental defects like MRKH syndrome and androgen insensitivity are also reviewed. The most common causes of primary amenorrhea are discussed including hypogonadotropic hypogonadism, hypergonadotropic hypogonadism, and Turner syndrome. Management strategies are provided.