Breast Development: Painful Lumps in Adolescents - Breast and Thyroid

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Could you please tell me if having a hard lump in my chest that hurts when pressed, which I've had since fourth grade, is considered part of development?

Xiao Hua, 10~19 year old female. Ask Date: 2015/07/22

Dr. Zhou Jiazhen reply Breast and Thyroid


Hello: If both breasts are the same, it may be normal; however, if there is asymmetry or a sensation of a suspicious lump, a clinic examination is necessary.
Wishing you peace and health.
Director of Surgery, Taoyuan Hospital, Ministry of Health and Welfare, Dr.
Chou Chia-Cheng.

Reply Date: 2015/07/22

More Info


Breast development during adolescence is a complex process influenced by hormonal changes in the body. In general, the presence of lumps or tenderness in the breast area can be a normal part of this developmental phase, especially in young girls. However, when it comes to boys, the situation is a bit different.

For a fifth-grade boy (around 11-12 years old) experiencing hard lumps in the breast area that are painful to the touch, this is not typically considered a normal occurrence. Boys do undergo some breast tissue development during puberty, a condition known as gynecomastia, which is often temporary and related to hormonal fluctuations. However, if the lumps are painful and persistent, it is advisable to consult a healthcare professional, preferably a pediatric endocrinologist, to rule out any underlying issues.

Regarding the dietary habits mentioned, it is indeed possible that excessive consumption of certain foods, particularly those high in hormones (like some meats), could influence hormonal balance and contribute to breast tissue changes. While diet alone is unlikely to be the sole cause of breast development in boys, it can play a role in overall hormonal health.

In the case of girls, breast development typically begins between the ages of 8 and 14, with changes such as tenderness and the formation of lumps being common as the breast tissue matures. This is due to the growth of mammary glands and the influence of estrogen. If a girl experiences significant pain or unusual lumps, it is important to monitor the situation and seek medical advice if necessary.

For both boys and girls, the presence of painful lumps should be evaluated by a healthcare provider, especially if they persist or are accompanied by other symptoms such as changes in breast shape, discharge, or significant discomfort. Regular check-ups during puberty can help ensure that any concerns are addressed early on.

In summary, while some breast changes during adolescence are normal, persistent pain and lumps warrant further investigation. It is crucial to maintain open communication with healthcare providers to ensure healthy development during these formative years. If you have concerns about breast development or any associated symptoms, do not hesitate to reach out to a medical professional for guidance and support.

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