Hua Hua, a 5-year-old girl, was brought to the clinic by her mother in a hurry because of breast enlargement. The examination revealed that Hua’s bilateral breasts were as big as small quail eggs, and the areolas were dark, and a closer examination revealed that there were two small breasts above the two normal breasts, near the two armpits, and the nipples could be seen! The first thing I learned was that Hua had mistakenly taken the family’s birth control pills. The contraceptive pill was found by my sister, both my sister and Huahua had eaten it, but my sister threw up at the time because it didn’t taste right, while Huahua ate it all! The contraceptive pill in the stimulation of the flower’s breast development, then the other 2 breasts is what happened? It turns out that the other 2 breasts have always existed, just because they were relatively small parents thought they were 2 moles and did not care. This time, the other two breasts were enlarged due to the misuse of birth control pills and were only discovered when she came to the clinic. Fortunately, the misuse of birth control pills did not cause any damage to Hua’s liver or kidney function. This is due to the fact that the nipples formed on the “nipple line” during the embryonic period do not degenerate properly, and there are too many nipples on the nipple line, also known as paramecium or redundant nipples. You can find many mammals have 2 rows of breasts, most humans have evolved to only 2 breasts, very few will appear this phenomenon of ancestry. Later on, we found that Hua Hua’s mother also grew an extra small breast! Check the internet, there are even breasts growing on the soles of the feet! This is a completely avoidable phenomenon, parents must take care of the drugs at home. 2. the growth and development of each child is different, for the healthy growth of the baby parents better take the child to a professional institution regularly to monitor growth and development. 3. the causes of precocious puberty are many, the impact on each child is also different, found breast enlargement It is best to take your child to have their growth and development evaluated at any age. In addition, it is important to evaluate the growth and development of the child if the breasts do not increase in size.