Table 1.

Stages of breast cancer and representative clinical characteristics.

Stage	Tumor size	Lymph node	Spreading	Survival Rate (5 years)
0	Small, Inside the glands	Non-affected	No	100%
I	< 2 cm	Non-affected	No	98%
II	2–5 cm	Affected	No	87%
III	> 5 cm	Affected	No	61%
IV	Any size	Affected	Yes	20%