Thelarche is also known as breast budding which is the very first sign of puberty due to estrogen hormone in females. This sign of puberty is commonly seen around the age of 8 years in females. In some cases, this sign is seen early around the age of 3 years that affects either one side of the breast or both. However, the increased breast size does not show further growth until a year.
Premature Thelarche - Causes, Symptoms, Treatment, and Complications
Premature thelarche is a benign condition that affects young females and is sometimes mistaken for central precocious puberty. Read this article to know more.