There are mainly 4 stages of cancer depending on the severity and spread of the cancerous cells. Stage 0 is the initial stage and Stage 4 is the advanced and final stage of the breast cancer.
Stage 0: During this stage, the cancer is non invasive in nature. It is only limited to the portion where it started. It does not spread to the nearby organs and tissues.
Stage 1: Stage 1 is also known as early stage breast cancer. The size of the tumor is smaller and it is limited inside the breast or it may spread to nearby lymph nodes.
Stage 2: Cancer is confined in the breast nodes or nearby lymph nodes or both. The number of nodes infected with cancer or size of the tumor is greater in stage 1 breast cancer.
Stage 3: It is also known as locally advanced breast cancer which has spread to the chest wall or the skin of the breast or nearby lymph nodes to the breast.
Stage 4: It is also known as advanced cancer in which cancer cells metastasize into nearby and distant organs and it requires immediate medical treatment.
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