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Breast diseases

There are many different types of breast diseases, including infections, cysts and growths. It’s important to be aware of how your breasts look and feel, and to see a doctor if you notice any changes. Learn more about common breast diseases using the links below.

Breast cancer

Breast cancer often shows as a lump in the breast tissue, although most breast lumps are not cancerous. If found early, full recovery is more likely.

Breast cysts

Breast cysts are benign bubbles of fluid in the breast. Learn how to recognise them and when to see a doctor.

Breast engorgement

Engorgement is when your breasts are overfull with milk and fluids. It is usually temporary and will lessen to adjust to your baby's needs.


Find out about the causes and treatment for gynaecomastia – the development of enlarged breasts in males.


Mastitis occurs when breast tissue gets inflamed, usually due to a blocked milk duct caused by breastfeeding. Mastitis can lead to infection.

Metastatic breast cancer

Metastatic breast cancer is breast cancer that has spread to other parts of your body. Treatment cannot cure it, but targets the symptoms.

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