At the early stage of breast development, there will be symptoms such as slight breast elevation, enlarged nipple, enlarged areola, and pain in the breast. 1. Slightly elevated breasts: As the breast buds under the nipple and areola begin to grow in the early stage of breast development, small hard knots can be touched, and the phenomenon of elevated breasts will occur. 2. Nipple enlargement: at the early stage of breast development, the nipple will become a small ball, and become bigger, and at the same time, there will be itching and pain in the process of enlargement, remember not to rub it with your hands, in order to prevent the occurrence of infection. 3. Enlargement of areola: areola will increase in area and deepen in color in the early stage of development, which is normal. 4. Breast pain: In the early stage of development, breast pain may occur, and may be relieved for a period of time, generally do not need special treatment. Once abnormalities are found during the developmental period, it is necessary to seek medical treatment in a timely manner.