What are the causes of naturally small breasts?

Generally, naturally small breasts are usually related to hereditary factors, gene mutations, abnormal hormone levels, maternal malnutrition during pregnancy, underdevelopment of the mammary glands, and other factors. If necessary, it is recommended to seek treatment at a reputable hospital. Detailed analysis is as follows:

1. Genetic factors: Natural breast size is largely influenced by heredity. If members of the family have smaller breasts, an individual may also develop smaller breasts, which is determined by genetic factors. Hyaluronic acid injection for breast augmentation can be considered, whereby hyaluronic acid is injected into the breast area to achieve a breast enhancement effect. The general reference price for hyaluronic acid injection breast augmentation ranges from 3,000 to 30,000 yuan per session, and visible improvement can usually be seen within 7–15 days.

2. Gene mutations: Gene mutations may cause abnormal breast development, including naturally small breasts. These mutations may affect gene expression related to breast development, thus influencing breast size. Autologous fat grafting involves extracting fat from other areas of the body and injecting it into the breasts to achieve breast enhancement. The general reference price for autologous fat grafting ranges from 5,000 to 20,000 yuan per session, and visible improvement can usually be seen within 7–15 days.

3. Hormonal imbalances: Insufficient secretion of hormones such as estrogen and progesterone during growth and development may lead to smaller breast development. It is recommended to adjust lifestyle habits, and when necessary, follow medical advice to use medications such as propylthiouracil tablets, methimazole tablets, and propranolol hydrochloride tablets for treatment.

4. Maternal malnutrition during pregnancy: Poor maternal nutrition during pregnancy may negatively affect fetal breast development; however, this impact may be partially alleviated or masked by postnatal factors.

5. Underdeveloped mammary glands: Physiological differences exist during individual development, and the normal development of mammary tissue affects breast size and shape. Poor mammary gland development may result in smaller breasts. Breast augmentation with implants can be considered, whereby implants are inserted into the chest to increase breast volume. The general reference price for implant-based breast augmentation ranges from 12,000 to 200,000 yuan per session, and visible improvement can usually be seen within 15–40 days. However, this method may carry a risk of infection, so strict postoperative care is required.

In addition, maintaining a healthy lifestyle, adjusting diet, and engaging in appropriate exercise in daily life are beneficial for promoting healthy breast development.