Easy bruising

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Raviteja Guddeti, M.B.B.S. [2]

By organ system

Cardiovascular	Cardiac cirrhosis
Chemical / poisoning	Brodifacoum, Chlorophacinone rodenticide poisoning, Coumachlor rodenticide poisoning, Coumafuryl rodenticide poisoning, Coumatetralyl rodenticide poisoning, Difenacoum rodenticide poisoning, Difethialone rodenticide poisoning, Diphacinone rodenticide poisoning, Finale rodenticide poisoning, Flocoumafen rodenticide poisoning, Folgorat rodenticide poisoning, Havoc rodenticide poisoning, Indandione rodenticide poisoning, Klerat rodenticide poisoning, Matikus rodenticide poisoning, Mouser rodenticide poisoning, Pindone rodenticide poisoning, Ratak Plus rodenticide poisoning, Rodend rodenticide poisoning, Talon rodenticide poisoning, Volak rodenticide poisoning, Volid rodenticide poisoning
Dermatologic	Epidermolysis bullosa simplex - Ogna type, Henoch-Schonlein purpura, Hermansky-Pudlak Syndrome, Lichen Sclerosis
Drug Side Effect	Amino salicylic acid, Anticoagulant (Warfarin), Aspirin, Bromadiolone, Entacapone, Filgrastim, Imatinib, Isotretinoin, Lenograstim, NSAIDs, Pentoxifylline, Phenylbutazone, prednisone, Sodium aurothiomalate (Myocrisin Injection 2%), Steroid, Zonisamide
Ear Nose Throat	No underlying causes
Endocrine	Alcohol-induced pseudo-Cushing syndrome, Cushing's syndrome, Graves Disease, Schroeder syndrome 1
Environmental	Caterpillar-induced bleeding syndrome, Solar skin exposure
Gastroenterologic	Biliary atresia, Cirrhosis, Cryptogenic cirrhosis, Hemochromatosis, Hypersplenism, Liver disease, Nonalcoholic fatty liver disease , Primary biliary cirrhosis , Primary sclerosing cholangitis, Secondary Biliary Cirrhosis, Wilson's disease
Genetic	Down syndrome (Acute lymphoblastic leukemia), Hereditary macrothrombocytopenia, May-Hegglin Anomaly,Osteogenesis imperfecta Type I, Osteogenesis imperfecta type IV, Owren Parahemophilia, Wiskott-Aldrich Syndrome, X-linked dyserythropoietic anaemia and thrombocytopenia
Hematologic	Aantibodies anti-FVIIIc syndrome, Acquired amegakaryocytic thrombocytopenia, Acquired hypoprothrombinemia, Acquired pure megakaryocytic aplasia, Acute biphenotypic leukemia, Acute erythroleukemia, Acute lymphoblastic leukemia, Acute megacaryoblastic leukemia, Acute myelocytic leukemia, Acute myeloid leukemia, Acute non lymphoblastic leukemia, Acute promyelocytic leukemia, Deficiency of ADP platelet receptor P2Y12, Amegakaryocytic thrombocytopenia, Congenital Anti-plasmin deficiency, Aplastic anemia, Bernard-Soulier Syndrome, Chronic Idiopathic Myelofibrosis, Chronic lymphocytic leukemia, Chronic myelogenous leukemia, Chronic myeloid leukemia, Chronic myelomonocytic leukemia, Myeloproliferative Disorders, Chronic Neutrophilic Leukemia, Familial CML-Like Syndrome, Congenital amegakaryocytic thrombocytopenia, DIC, Essential thrombocytopenia, Essential thrombocytosis, Factor IX Deficiency, Combined deficiency of Factor V and factor VIII, Factor V deficiency, Factor VII deficiency, Factor X deficiency, Familial platelet syndrome with predisposition to acute myelogenous leukemia, Glanzmann Thrombasthenia, Hairy cell leukemia, Familial Hemophagocytic lymphohistiocytosis, Hemophilia A, Hemophilia B, Idiopathic thrombocytopenic purpura, Chronic T-cell leukemia, Lymphoblastic lymphoma, Multiple myeloma, Myelofibrosis,Myelogenous leukemia, Pancytopenia, Paroxysmal Nocturnal Hemoglobinuria, Prothrombin deficiency, Storage pool platelet disease, Stuart factor deficiency, T-cell acute lymphoblastic leukemia, Thrombasthenia, Thrombocytopathy, Thrombocytopenia -- cerebellar hypoplasia -- short stature, Thrombocytopenias, Von Willebrand's Disease, Waldenstrom macroglobulinemia
Iatrogenic	No underlying causes
Infectious Disease	Chronic viral hepatitis, Dengue Fever, Human T-lymphotropic virus type 3, Sepsis
Musculoskeletal / Ortho	ATRUS syndrome, Ehlers-Danlos syndrome, Marfan Syndrome, Spondylometaphyseal dysplasia with combined immunodeficiency
Neurologic	No underlying causes
Nutritional / Metabolic	B12 deficiency, Folate deficiency, Gaucher Disease, Glycogen Storage Disease Type I, Malnutrition, Niemann-Pick disease, Sphingolipidosis, Thiopurine S methyltranferase deficiency, Von Gierke Disease, Xylosylprotein 4-beta-galactosyltransferase (XGPT) deficiency
Obstetric/Gynecologic	Eclampsia, HELLP syndrome
Oncologic	No underlying causes
Opthalmologic	Retinopathy -- aplastic anemia -- neurological abnormalities
Overdose / Toxicity	No underlying causes
Psychiatric	No underlying causes
Pulmonary	No underlying causes
Renal / Electrolyte	Chronic renal insufficiency, Fanconi syndrome, Renal failure
Rheum / Immune / Allergy	Autoimmune hepatitis, Chediak-Higashi Syndrome, Immune thrombocytopenic purpura, Systemic Lupus Erythematosus
Sexual	No underlying causes
Trauma	No underlying causes
Urologic	No underlying causes
Dental	No underlying causes
Miscellaneous	Aging, Amyloidosis, Normal - especially in females