What does it mean if only one of your breasts hurt?

Breast pain that affects only one breast is not always cause for alarm. Many women experience occasional breast pain, tenderness, or discomfort. In most cases, it's related to hormonal changes during the menstrual cycle or due to normal breast development.

Common causes of one-sided breast pain may include:

1. Hormonal Changes: Hormonal fluctuations, especially during the menstrual cycle, can sometimes lead to breast pain and tenderness in one or both breasts.

2. Breast Cysts: Fluid-filled sacs or cysts can develop in the breast and cause discomfort or pain. These cysts are usually benign.

3. Mastitis: Mastitis is an infection of the breast tissue, often seen during breastfeeding. One breast may be affected, and it can cause pain, swelling, redness, and fever.

4. Injury: A physical trauma or impact to the breast can cause pain and tenderness.

5. Fibrocystic Changes: Fibrocystic breast changes are non-cancerous lumps or thickened areas that can cause discomfort or pain. They are more common in younger women.

6. Pregnancy-Related: Breast pain can be a sign of early pregnancy due to hormonal changes and breast tissue development.

7. Underlying Medical Conditions: Rarely, one-sided breast pain may be associated with underlying medical conditions like thyroid issues or hormonal imbalances.

If the breast pain is severe, persistent, or accompanied by other symptoms such as nipple discharge, skin changes, or lumps, it's essential to consult a doctor for proper evaluation and diagnosis. They can determine the cause of the pain and recommend appropriate treatments or further investigation if necessary.