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Large red blood cells, called macrocytosis, are not a cancer symptom but may signal a problem that needs to be examined medically, explains Mayo Clinic. Macrocytosis is not a disease and does not produce symptoms or signs. Vitamin B-12 or folate deficiencies, liver disease, hypothyroidism and alcoho


Red blood cells carry oxygen and nutrients to the tissues in the body and take away carbon dioxide. They are also called erythrocytes. They get their red color from a pigment called hemoglobin, and it is the hemoglobin that actually carries the oxygen and carbon dioxide.


Health Hype states that an excess amount of red blood cells affects the viscosity of blood and causes the rate of blood flow to decrease. While the body copes with a slight increase or decrease in the red blood cell concentration within the blood, too many red blood cells or too few red blood cells


Some signs of small red blood cells disease are a very enlarged spleen and other organs and jaundice, according to MedlinePlus and Healthline. One type of small red blood cells disease is thalassemia. There are basically two types: alpha and beta.


For a cancer patient, a high red blood cell count can mean that the cancer has spread to the kidneys, resulting in renal cell carcinoma, explains Healthline. However, it can also indicate that an individual is merely dehydrated or taking certain drugs that can raise red blood cell counts.


A normal red blood cell lives for about 120 days. It takes about two days for the body to manufacture each red blood cell, and about two million are turned out every second. Production of new red blood cells occurs in the bone marrow.


The three main types of blood cancer are leukemia, lymphoma and myeloma, according to the American Society of Hematology. Leukemia relates to the blood and bone marrow, while lymphoma targets the lymphatic system. Myeloma is a malignancy of the plasma cells in the blood.


Blood cancers impact the production and function of blood cells, says the American Society of Hematology. Most begin in the bone marrow where normal blood cell development is interrupted by the uncontrolled growth of abnormal cells. There are three categories of blood cancer: leukemia, lymphoma and


Microcytic anemia is the condition wherein red blood cells are smaller than normal, and it is primarily caused by iron deficiency anemia and thalassemia, according to Dr. Siamak T. Nabili writing for eMedicineHealth. Iron deficiency anemia occurs due to limited or inadequate iron intake.


Cancer and cancer treatment causes low white blood cell count in the body, states MedlinePlus. Cancer can develop in the bone marrow, leading to low production of neutrophils. Some cancer treatments, such as radiation therapy and chemotherapy, usually cause low blood cells, says Mayo Clinic. Cancers