title: Disorders of Pubertal Development: Too Early, Too Much, Too Late, or Too Little.
abstract: Major disturbances of pubertal development and variations of normal puberty are discussed. The authors highlight four kinds of pubertal disorders: "too early" (precocious puberty), "too much" (gynecomastia, macroorchidism, and hyperandrogenism), "too late" (delayed puberty), and "too little" (hypogonadism).
authors.affiliation: Section of Pediatric Endocrinology, Wyler Children's Hospital, 5841 S. Maryland Avenue-MC-5053, Chicago, IL 60637-1470, USA.
authors.initials: K
authors.lastname: Ghai
authors.initials: RL
authors.lastname: Rosenfield