In the early stages of pregnancy, many women will experience a series of early pregnancy reactions, including breast swelling and pain. The occurrence of early pregnancy reactions is a normal physiological phenomenon, so pregnant women do not need to worry excessively. The level of hormones in the body of pregnant women will change in the early stage of pregnancy, and with the rise of hormones in the body of pregnant women, the breasts will undergo a series of changes under the stimulation of hormones. The breast tissue in the breast may be mildly enlarged under the stimulation of hormones, and the appearance of the breast may appear to be mildly enlarged, resulting in slight breast swelling and pain. However, these symptoms are mild and are normal physiological changes that do not require special treatment. However, if the swelling and pain in the early stages of pregnancy are more pronounced, unbearable and prolonged, patients are advised to consult a local hospital immediately to rule out the possibility of organic breast lesions. In addition, during pregnancy, patients need to take good care of their breasts and keep their nipples and areolas clean and dry to avoid infection by external pathogenic microorganisms that may cause organic breast lesions. As mentioned above, breast tenderness during pregnancy is a normal physiological phenomenon, and no special treatment is needed.