Developmental Issues in a 10-Year-Old Boy

Developmental issues in a 10-year-old boy?

Hello Doctor: My son will turn ten this October.
Recently, he mentioned that his breasts hurt when touched, and in the past few days, I noticed that there are hard lumps starting to form.
Initially, there was only one on the right side, but during a check yesterday, I found that the lump seems to have grown a bit, and now there is also a small lump on the left side.
His father thinks this is part of his development and believes there is no need for a medical consultation, but I am quite worried since he is almost ten years old and he is a boy.
Is this a normal phenomenon? Thank you!

Danxin de mama, 10~19 year old female. Ask Date: 2010/09/01

Dr. Xiao Kaiwen reply Pediatrics

If it is located directly below the nipple, it is likely a normal phenomenon occurring "before" development.
However, if there are noticeable accompanying secondary sexual characteristics (such as the growth of pubic and axillary hair, development of a male Adam's apple, elongation of the penis, or a sudden rapid increase in height), it may indicate endocrine dysfunction or precocious puberty.
It is recommended that you consult a pediatric growth and development specialist or a pediatric endocrinologist.

Reply Date: 2010/09/01

More Info

It's understandable to be concerned about your son's health, especially when it comes to changes in his body at such a young age. The development of breast tissue in boys, known as gynecomastia, can occur during puberty due to hormonal changes. However, since your son is only ten years old, it is important to approach this situation with caution and seek professional medical advice.

Gynecomastia is relatively common in adolescent boys and can be caused by an imbalance between testosterone and estrogen levels in the body. During puberty, boys experience a surge in testosterone, but they may also have temporary increases in estrogen, which can lead to the development of breast tissue. This condition can be unilateral (affecting one side) or bilateral (affecting both sides) and may be accompanied by tenderness or discomfort, as you mentioned.

However, while gynecomastia can be a normal part of puberty, it is crucial to rule out other potential causes of breast tissue development, especially since your son is still quite young. Conditions such as hormonal imbalances, certain medications, or underlying health issues can also contribute to breast tissue growth in boys. Therefore, it is advisable to consult a pediatrician or an endocrinologist who specializes in hormonal disorders in children.

When you visit the doctor, they will likely conduct a thorough examination and may order blood tests to check hormone levels. They will also take a detailed medical history to understand any other symptoms your son may be experiencing. If gynecomastia is diagnosed, the doctor will discuss the potential treatment options, which may include monitoring the condition, lifestyle changes, or, in some cases, surgical intervention if the condition persists or causes significant discomfort.

In the meantime, it is essential to provide emotional support to your son. Changes in the body during puberty can be confusing and sometimes distressing for children. Encourage open communication, allowing him to express any concerns or feelings he may have about these changes. Reassure him that it is a normal part of growing up and that many boys experience similar changes.

In conclusion, while breast tissue development in boys can be a normal part of puberty, it is essential to consult a healthcare professional to ensure that there are no underlying health issues. Early intervention and proper guidance can help address any concerns and provide peace of mind for both you and your son.

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