Blood Disorders Summary Your blood is living tissue made up of liquid and solids. The liquid part, called plasma, is made of water, salts and protein. Over half of your blood is plasma. The solid part of your blood contains red blood cells, white blood cells and platelets. Blood disorders affect one or more parts of the blood and prevent your blood from doing its job. They can be acute or chronic. Many blood disorders are inherited. Other causes include other diseases, side effects of medicines, and a lack of certain nutrients in your diet. Types of blood disorders include Platelet disorders, excessive clotting, and bleeding problems, which affect how your blood clots Anemia, which happens when your blood does not carry enough oxygen to the rest of your body Cancers of the blood, such as leukemia and myeloma Eosinophilic disorders, which are problems with one type of white blood cell. National Heart, Lung, and Blood Institute Encyclopedia Agranulocytosis Arterial stick Blood typing Capillary sample Coombs’ test Cord blood testing Donath-Landsteiner test Ham test Haptoglobin blood test Hemoglobin C disease Hemoglobin electrophoresis Hemoglobinopathy Hemolytic crisis Hemolytic disease of the newborn Hereditary elliptocytosis Hereditary ovalocytosis Hyperviscosity – newborn Methemoglobinemia Methemoglobinemia – acquired Methylene blue test Neutropenia – infants Osmotic fragility test Paroxysmal cold hemoglobinuria (PCH) Paroxysmal nocturnal hemoglobinuria (PNH) Polychromatophilia Serum free hemoglobin test Sugar-water hemolysis test Twin-to-twin transfusion syndrome Venipuncture Start Here Blood (For Parents) Nemours Foundation Array Blood differential Blood smear CBC Hematocrit Hemoglobin Low white blood cell count and cancer RBC count RBC indices WBC count Diagnosis and Tests Blood Tests National Heart, Lung, and Blood Institute Hemoglobinopathy Evaluation American Association for Clinical Chemistry How Is Lymphocytopenia Diagnosed? National Heart, Lung, and Blood Institute How Is Polycythemia Vera Diagnosed? National Heart, Lung, and Blood Institute MedlinePlus: Blood Count Tests National Library of Medicine Clinical Trials ClinicalTrials.gov: Hematologic Diseases National Institutes of Health Specifics Eosinophilia Mayo Foundation for Medical Education and Research Heavy Chain Diseases Merck & Co., Inc. Hemoglobin C, S-C, and E Diseases Merck & Co., Inc. High Red Blood Cell Count Mayo Foundation for Medical Education and Research Low White Blood Cell Count Mayo Foundation for Medical Education and Research Lymphocytosis (High Lymphocyte Count) Mayo Foundation for Medical Education and Research Monoclonal Gammopathy of Undetermined Significance (MGUS) Mayo Foundation for Medical Education and Research Neutropenia (Low Neutrophil Count) Mayo Foundation for Medical Education and Research Paroxysmal Nocturnal Hemoglobinuria (PNH) Aplastic Anemia & MDS International Foundation Plasma Cell Disorders Merck & Co., Inc. Polycythemia Vera National Heart, Lung, and Blood Institute White Blood Cell Disorders Merck & Co., Inc. Find an Expert Find a Hematologist American Society of Hematology National Heart, Lung, and Blood Institute National Heart, Lung, and Blood Institute Genetics Genetics Home Reference: 8p11 myeloproliferative syndrome National Library of Medicine Genetics Home Reference: aceruloplasminemia National Library of Medicine Genetics Home Reference: autosomal recessive congenital methemoglobinemia National Library of Medicine Genetics Home Reference: chorea-acanthocytosis National Library of Medicine Genetics Home Reference: congenital plasminogen deficiency National Library of Medicine Genetics Home Reference: cyclic neutropenia National Library of Medicine Genetics Home Reference: Diamond-Blackfan anemia National Library of Medicine Genetics Home Reference: dyserythropoietic anemia and thrombocytopenia National Library of Medicine Genetics Home Reference: familial erythrocytosis National Library of Medicine Genetics Home Reference: hereditary spherocytosis National Library of Medicine Genetics Home Reference: McLeod neuroacanthocytosis syndrome National Library of Medicine Genetics Home Reference: methemoglobinemia, beta-globin type National Library of Medicine Genetics Home Reference: neuroferritinopathy National Library of Medicine Genetics Home Reference: paroxysmal nocturnal hemoglobinuria National Library of Medicine Genetics Home Reference: polycythemia vera National Library of Medicine Genetics Home Reference: severe congenital neutropenia National Library of Medicine Genetics Home Reference: X-linked sideroblastic anemia National Library of Medicine Reference Desk Hematology Glossary American Society of Hematology Related Issues How Does Lupus Affect the Blood? Lupus Foundation of America What Causes Lymphocytopenia? National Heart, Lung, and Blood Institute What Causes Polycythemia Vera? National Heart, Lung, and Blood Institute Treatments and Therapies How Is Lymphocytopenia Treated? National Heart, Lung, and Blood Institute How Is Polycythemia Vera Treated? National Heart, Lung, and Blood Institute Living With Living with Lymphocytopenia National Heart, Lung, and Blood Institute Living with Polycythemia Vera National Heart, Lung, and Blood Institute Journal Articles Blood Disorders Symptoms Symptoms of Blood Disorders Merck & Co., Inc. What Are the Signs and Symptoms of Polycythemia Vera? National Heart, Lung, and Blood Institute
