What are a chances of a 19 year old getting cancer? which ones are the most frequent in young adults?

At your age, blood cancer (leukemia and lymphoma) is probably top of the list of all cancers and testicular and thyroid cancer are likely the most common solid cancers. In general, risk for solid cancer is still much lower in young adults.

AT your age healthy lifestyle will help prevent the cancers you could come done with. NO smoking or tobacco chewing to prevent oral cancer. Limited alcohol drinking to prevent liver cancer. Limited sun exposure to prevent melanoma. Good oral hygiene to prevent oral cancer. A family history is also important.