What are the symptoms of breast cancer and why is it occure ?

Symptoms of breast cancer:

• Any unexpected change in the shape and size of the breast
• Unexpected swelling
• Formation of lump on the breast
• Change in the skin texture of breast
• Any unexpected discharge from the nipples of the breast
• Lump or swelling near the armpit.

It is not yet clearly proved that why exactly breast cancer occurs but sometimes it is said to be hereditary. Unhealthy lifestyle, smoking, drinking alcohol, high fat diet etc. may also lead towards this type of health problems.