Breast Development in Girls: What's Normal at Age 9?
Breast development (thelarche) typically begins between ages 10 and 14. While some girls start earlier, breast buds at age 9 may indicate precocious puberty and warrant medical evaluation.
When to Consult a Doctor
- Breast development before age 8.
- Rapid progression or accompanying signs (pubic hair, growth spurt, menstruation).
- Asymmetry or masses.
A pediatrician or pediatric endocrinologist can assess hormonal status and rule out underlying conditions.
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