Precocious Puberty
Condition
(Precocious Sexual Development, Premature Puberty)
Definition
Precocious puberty is when puberty happens before:
- 8 years of age in girls
- 9 years of age in boys
Causes
Puberty is a complex process of brain, body, and hormonal growth. In most children, the cause of precocious puberty is not known.
In some children, it may be caused by:
- Brain tumors
- Cerebral palsy
- Hydrocephalus
- Problems with the central nervous system
Copyright © Nucleus Medical Media, Inc.

Copyright © Nucleus Medical Media, Inc.

Risk Factors
Precocious puberty is more common in girls.
Other things that may raise a child’s risk are:
- Having a greater body mass index, especially in girls
- Exposure to toxins
- Having other family members who have had precocious puberty
Symptoms
Symptoms of PP in girls may include:
- Breast, pubic hair, and underarm hair growth
- Menstrual bleeding
Symptoms of PP in boys may include:
- Growth of penis and testicles
- Pubic and underarm hair growth
Diagnosis
The doctor will ask about your child's symptoms and health history. A physical exam will be done. Your child’s puberty milestones and growth will be checked. The doctor may refer your child to a doctor who treats in hormonal, glandular, and metabolic problems.
Blood tests may be done to check hormone levels.
Pictures of the body may be taken with:
Treatment
The goal of treatment is to stop or slow puberty. Close monitoring of growth and development will be needed.
Any underlying causes will need to be treated. Other treatments that may be used are:
Prevention
There are no known guidelines to prevent precocious puberty.
Medicine
Artificial hormones may be given to stop the body from making reproductive or growth hormones.
Medicine
Artificial hormones may be given to stop the body from making reproductive or growth hormones.
Mental Health Counseling
Precocious puberty can be stressful. Talk therapy can help a child learn how to cope.
National Institute of Child Health and Human Development
Kids Health—Nemours Foundation
CANADIAN RESOURCES:
About Kid's Health—The Hospital for Sick Children
Health Canada
National Institute of Child Health and Human Development
Kids Health—Nemours Foundation
CANADIAN RESOURCES:
About Kid's Health—The Hospital for Sick Children
Health Canada
References
- Precocious (early) puberty. Cleveland Clinic website. Available at: https://my.clevelandclinic.org/health/diseases/21064-precocious-early-puberty.
- Precocious puberty. EBSCO DynaMed website. Available at: https://www.dynamed.com/condition/precocious-puberty-15.
- Puberty and precocious puberty. National Institute of Child Health and Human Development website. Available at: https://www.nichd.nih.gov/health/topics/puberty.
Contributors
- Kari Kuenn, MD
(C) Copyright 2022 EBSCO Information Services
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