The right side of the breast pain and can squeeze out water to consider the physiological situation or acute mastitis, cystic hyperplasia of the breast, breast cancer and so on. 1. Physiological situation: the patient is in the period of pregnancy and lactation, there may be symptoms of breast pain and can squeeze out water, is a normal phenomenon, can be temporarily observed. 2. Acute mastitis: common in breastfeeding women, the cause of milk stagnation secondary to bacterial invasion caused by the main clinical manifestations of breast pain, but also local redness, swelling, heat, and so on. Early acute mastitis can be treated with antibiotics, such as penicillin, etc., and late abscesses can be incised and drained with surgery. 3. Breast cystic hyperplasia: the cause of the disease is mainly due to the imbalance of the ratio of estrogen and progesterone, the main manifestation is the periodic breast swelling and pain, usually related to the menstrual cycle, and a few patients have plasma nipple discharge. The main treatment is symptomatic treatment, such as the use of small gold pills and other drugs under the guidance of the doctor. 4. Breast Cancer: Most of the breast cancer manifests as painless lumps in the breast, but a small number of patients can also be accompanied by breast pain and breast fluid, which need to be taken seriously. Right breast pain can also be squeezed out water can also be caused by other reasons, you need to consult a doctor in a timely manner, receive professional examination to make a diagnosis, follow the doctor’s instructions.