It cannot be ruled out that children develop breast enlargement during their growth spurt, resulting in the presence of lumps in the breasts. However, the chances are low, so there is no need to worry too much. Generally speaking, children will not develop breast enlargement, which is related to the abnormal secretion of estrogen in the body. In the early stage of development, due to the imperfect development of the body, the possibility of breast enlargement is low. However, the possibility of early development due to environmental factors, dietary factors and other circumstances can not be ruled out, so it is necessary to pay attention to observation. Parents should pay attention to their children’s diet and eat less puffed food to avoid abnormal development of the mammary glands due to unhealthy food during growth and development, which may lead to the emergence of the disease. If there is any abnormality, you must go to the hospital in time for examination and treatment under the guidance of the doctor.