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Dong Xian Yan

Pediatrics

About me

Chief physician, professor. Specializes in common and frequent pediatric diseases; pediatric respiratory diseases and critical care, emergency rescue, and difficult cases in children. Identified as one of the first group of academic and technical leaders to be cultivated in the health system of Ganzhou City; Vice Chairman of the Children's Severe Rehabilitation Committee of Jiangxi Disabled Persons' Rehabilitation Association; Member of the Pediatric Science Branch of Jiangxi Research Hospital Association; Executive Committee Member of the Pediatric Infectious Disease Branch of Jiangxi Research Hospital Association; Member of the First Allergy Study Professional Committee of Jiangxi Integrative Medicine Association; Executive Committee Member of the Pediatric Science Professional Committee of Jiangxi Research Hospital Association; Member of the Expert Group of Ganzhou City Pediatrics Quality Control Center; Member of the Expert Group on Hematologic Diseases and Malignant Tumors in Children in Ganzhou City; Principal investigator and participant in over 10 projects funded by the Provincial Health Commission and Ganzhou Science and Technology Bureau; Published over 20 professional papers, including 4 in core journals.

Proficient in diseases

Common and frequently-occurring diseases in pediatrics; pediatric asthma and emergency treatment of critical and difficult cases in children.

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Written by Dong Xian Yan
Pediatrics
1min 9sec home-news-image

The difference between precocious puberty and early development

It is generally believed that the development of breasts before the age of eight in girls, and the onset of menstruation before the age of ten; in boys, the development of testicles before the age of nine, appearance of secondary sexual characteristics, and accompanied by rapid physical development, are referred to as precocious puberty. Early development refers to the situation where, before puberty, not only the sexual organs but also other organs in boys and girls begin to develop simultaneously. Therefore, precocious puberty and early development not only differ in the age of onset but also focus more on whether the sexual organs are developing in coordination with the body's other organs. The differences lie not only in the timing but primarily in whether the development of the sexual organs is coordinated with the development of the body's other organs. If the sexual organs and the body's other organs are not developing in coordination, it indicates precocious puberty. If they are coordinated, and merely occurring earlier than usual in puberty, it is considered early development.