i found a lump in my left breast

Hi,
Welcome to ehealthforum,
Chances of breast cancer occurring at your age are minimal. However, it is difficult to comment on the cause for the breast lump that you describe without examining it. Consider reporting it to your mother or to your doctor and get it examined. The causes include fibroadenoma, benign breast lump (usually occurring as response to hormonal changes), lipoma, etc. The exact cause can only be made out after careful evaluation. Consider visiting your doctor/gynecologist at the earliest for thorough examination and further evaluation to look for the underlying cause for the breast lump that you describe. Treatment as needed (based on examination findings and investigations results) would be started to help you.
Take care.

I think if you found a lump in your breast, you should not ignore it,otherwise it may form Cancer.In initial stage it is curable,it becomes dangerous when it delayed.