The term tumor refers to the formation of an abnormal mass of tissue in any part of the body. Tumors are a result of abnormal growth of the neoplastic cells. Basically, tumors can be classified into three; they are; benign tumors, premalignant tumors, and malignant tumors. Benign tumors don't usually result in serious complications when they are removed, and they equally don't form cancer. Normally, premalignant tumors don't usually lead to cancer by invading the neighboring tissues, but they can lead to cancer the moment they are exposed to certain signals.
Malignant tumors can cause complications, and they are as well fatal. They can form cancer by invading the neighboring tissues. Polyp, on the other hand, refers to abnormal growth of tissue protruding from a mucous membrane. When polyps are formed, they occur in different sizes. Depending on how they form, polyps can be classified as nasal, digestive, urinary, and cervical polyps. Unlike tumors that do not cause bleeding, polyps can lead to bleeding.