What are the symptoms of puberty, precocious puberty, & delayed puberty?

Normal Puberty

In Girls

The signs of puberty include:

Growth of pubic and other body hair
Growth spurt
Breast development
Onset of menstruation (after puberty is well advanced)
Acne

In Boys

The signs of puberty include¹:

Growth of pubic hair, other body hair, and facial hair
Enlargement of testicles and penis
Muscle growth
Growth spurt
Acne
Deepening of the voice

Precocious Puberty

The symptoms of precocious puberty are similar to the signs of normal puberty but they manifest earlier—before the age of 8 in girls and before age 9 in boys.

Delayed Puberty

Delayed puberty is characterized by the lack of onset of puberty within the normal range of ages.

Citations

Open Citations

Styne, D. M., & Grumbach, M. M. (2008). Puberty: Ontogeny, neuroendocrinology, physiology, and disorders. In Kronenberg, H. M., Melmed, S., Polonsky, K. S., & Larsen, P. R. (Eds.), Williams textbook of endocrinology (11th ed., chap. 24). Philadelphia, PA: Saunders Elsevier.