Cancer is usually the cause of malignant tumors. In cases of benign tumors that are common in cases of fibroids and breast tumors, fluidic waste is usually the cause. In cancerous individuals, white blood cells are numerous. The white blood cells begin to outnumber the red blood cells. White blood cells always denote toxicity, imbalance, poison, and foreign invasion of that which is unnatural or that which should not be in the body. Excessive white blood cell count is almost always indicative of cancer. White blood cells have precursors known as "leukocytes," also called "leukocyte precursors." When bone marrow in the body is replaced with these leukocyte precursors in addition to abnormal numbers and forms of immature white blood cells in circulation that infiltrate the lymph nodes, spleen, liver and other filtering organs, the result is a form of cancer called "leukemia."