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www.reference.com/article/causes-gum-cancer-1c06ad9d653bd8f5

Cigarette smoking and excessive alcohol consumption cause a majority of oral cancer cases, according to the National Institute of Dental and Craniofacial Research. Users of smokeless tobacco products such as snuff, dip or chewing tobacco are up to 50 times more likely t...

www.reference.com/article/signs-gum-cancer-b7fd353746b7e72b

Gum cancer, or oral cancer, symptoms include lumps, swelling, white or red patches, and unexplained bleeding, according to WebMD. Other symptoms include numbness, a change in the way the teeth fit together and sores that do not heal within two weeks.

www.reference.com/article/stage-1-cancer-fe4d3139017e7c09

Each type of cancer is staged differently, but stage 1 typically indicates the tumor is small or the cancer has not spread beyond its site of origin. Staging is a way of describing how severe or extensive a person's cancer is, states the National Cancer Institute.

www.reference.com/article/stage-2-cancer-5bf39c754f93c94f

Stage II cancer means cancer cells have grown to nearby tissues but have yet to spread to lymph nodes and other parts of the body, states the American Society of Clinical Oncology states. Doctors determine staging using the "TNM" classification system for most types of ...

www.reference.com/article/stages-cancer-53151c2da5be4491

Most types of cancer are classed as belonging to stages 0, I, II, III or IV. The stage assigned to the cancer refers to the extent of its spread at the time of diagnosis. According to Cancer.Net, which stage a cancer is at determines the recommended course of treatment ...

www.reference.com/article/stage-3-cancer-f32d1d13612dfaf2

Stage III cancer is an active malignancy that has grown large and that may have spread to the lymph nodes but that is not generally present in tissues throughout the body. According to Cancer.Net, some overlap exists between stages II and III, and the determination as t...

www.reference.com/article/different-stages-cancer-44fb56d906d84f22

The different stages of cancer are stages zero, 1, 2, 3 and 4, according to the American Society of Clinical Oncology. However, most cancers only have the latter four stages, and doctors determine the cancer stage using the tumor, node and metastasis, or TNM, system of ...