What is considered delayed puberty in girls?

Delayed puberty in girls is defined as the absence of any signs of breast development by the age of 13. Breast development marks the onset of puberty and is a key sign of sexual maturation. The typical age for the onset of breast development is around 8 to 13 years, with most girls showing signs of puberty by age 12. Therefore, when there is no breast development by the age of 13, it leads to a concern for possible underlying conditions that may affect the normal progression of puberty.

Although other signs, such as the onset of menstruation or a growth spurt, are also important in the overall assessment of puberty, the specific absence of breast development is a primary indicator for diagnosing delayed puberty in girls. It is crucial to monitor these milestones, as they help in identifying potential hormonal imbalances or other medical conditions that may require intervention.