Precocious puberty signs and symptoms include development of the following before age 8 in girls and before age 9 in boys.
Signs and symptoms in girls include:
- Breast growth
- First period (menarche)
Signs and symptoms in boys include:
- Enlarged testicles and penis
- Facial hair (usually grows first on the upper lip)
- Deepening voice
Signs and symptoms that can occur in boys or girls include:
- Pubic or underarm hair
- Rapid growth
- Adult body odor
When to see a doctor
Make an appointment with your child's doctor for an evaluation if your child has any of the signs or symptoms of precocious puberty.
Jan. 02, 2014
- Saenger P. Definition, etiology and evaluation of precocious puberty. http://www.uptodate.com/home. Accessed Aug. 26, 2013.
- Precocious puberty. The Merck Manuals: The Merck Manual for Healthcare Professionals. http://www.merck.com/mmpe/print/sec19/ch282/ch282h.html. Accessed Aug. 27, 2013.
- Saenger P. Treatment of precocious puberty. http://www.uptodate.com/home. Accessed Aug. 26, 2013.
- Melmed S, et al. Williams Textbook of Endocrinology. 12th ed. Philadelphia, Pa.: Saunders Elsevier; 2011. https://www.clinicalkey.com. Accessed Aug. 26, 2013.
- Burt Solarzano CM, et al. Obesity and pubertal transition in girls and boys. Reproduction. 2010;140:399.
- Tolson KP, et al. The changes they are a-timed: Metabolism, endogenous clocks and the timing of puberty. Frontiers in Endocrinology. 2012;3:1.
- Fuqua JS. Treatment and outcomes of precocious puberty: An update. Journal of Clinical Endocrinology and Metabolism. 2013;98:2198.
You Are ... The Campaign for Mayo Clinic
Mayo Clinic is a not-for-profit organization. Make a difference today.