Disease A-Z Library
Inferior Anastomotic Vein Stasis
Inferior Anastomotic Vein Stasis is a condition that affects blood flow in veins, leading to various symptoms and complications. In this comprehensive guide, we’ll break down...
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Rx Blood, Metabolism, and Infectious Diseases (A – Z)
Browse plain-English disease and condition guides, including symptoms, causes, diagnosis, treatment options, prevention, and when to seek medical care.
2,111 articlesUpdated medical education library
Diseases A-Z
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A
- Abdominal Pain- Causes, Symptoms, Diagnosis
- Abdominal Pain- Symptoms, Diagnosis
- Absolute Basopenia
- Absolute Basophilia
- Absolute Eosinopenia
- Absolute Lymphocytosis
- ACER3-Related Early Childhood-Onset Progressive Leukodystrophy
- Acquired Aplastic Anemia
- Acquired Basopenia
- Acquired Erythroblastopenia
- Acquired Haemoglobin H Disease
- Acquired Primary Erythrocytosis
- Acquired Ring Sideroblasts (ARS)
- Acquired Sideroblastic Anemia
- Acquired Torticollis; Causes, Symptoms, Diagnosis, Treatment
- Acute Leukemia of Ambiguous Lineage
- Acute Leukemia of Indeterminate Lineage
- Acute Lymphopenia
- Acute Motor Neuropathy, Causes, Symptoms, Treatment
- Acute or Transient Lymphocytosis
- Acute Whiplash Injury; Causes, Symptoms, Treatment
- Adhesive Capsulitis link Diabetes Neuropathy
- Adult-onset Diabetes
- Aerobic Actinomyces Infection (Better Called Aerobic Actinomycete Infection)
- African Iron Overload
- Agammaglobulinemia Non-Bruton Type
- Agranulocytosis
- ALG1 Congenital Disorder of Glycosylation (ALG1-CDG)
- ALG2 Congenital Disorder of Glycosylation (ALG2-CDG)
- ALG6–Congenital Disorder of Glycosylation (ALG6-CDG, CDG-Ic)
- ALG8-Congenital Disorder of Glycosylation (ALG8-CDG)
- Alkaline Ceramidase-3 (ACER3) Deficiency
- Alkaptonuria
- Alpha Thalassemia Intellectual Disability Syndrome
- Alpha Thalassemia Spectrum Disorders
- Alpha Thalassemia–X-linked Intellectual Disability Syndrome
- Alpha-2-Plasmin Inhibitor (α2-Antiplasmin) Deficiency
- Alpha-Methyl-Acetoacetyl-CoA Thiolase Deficiency
- Alpha-Methylacetoacetic Aciduria
- Alpha-Methylacetoacetic Aciduria
- Alpha-Sarcoglycan–Related Limb-Girdle Muscular Dystrophy R3
- Alpha-sarcoglycanopathy
- Alpha-Thalassemia Myelodysplasia Syndrome
- Alpha-Thalassemia–Intellectual Disability Syndrome Linked to Chromosome 16
- Alpha-Thalassemia–Intellectual Disability Syndromes
- Alpha-Thalassemia/Mental Retardation Syndrome (ATR-X Syndrome)
- American Mountain Fever
- Aminoacylase-1 Deficiency (ACY1 Deficiency)
- Amoebiasis due to Entamoeba Histolytica
- Amoebiasis Due to Free Living Amoebae
- Ancylostoma
- Ancylostoma Infectious Disease
- Anemia – Types, Causes, Symptoms, Diagnosis, Treatment
- Anemia of Chronic Diseases
- Angina Decubitus; Causes, Symptoms, Diagnosis, Treatment
- Angina Pectoris- Causes, Symptoms Diagnosis
- Angina Pectoris- Health Tips, Home Remedies
- Angina Pectoris- Symptoms, Diagnosis, Types
- Angina Pectoris- Types, Causes, Symptoms
- Angina Pectoris-Homeopathy Medicine
- Angina Pectoris-Treatment, Complication
- Angiostrongyliasis (Rat Lungworm Disease)
- ANO5-Related Limb-Girdle Muscular Dystrophy
- Anoctamin-5–Related Limb-Girdle Muscular Dystrophy R12 (LGMDR12)
- Anterior Cerebellar Artery Infarct
- Anterior Choroidal Artery
- Anterior Choroidal Artery Arteriosclerosis
- Anterior Choroidal Artery Atrophy
- Anterior Choroidal Artery Degeneration
- Anterior Choroidal Artery Disorders
- Anterior Choroidal Artery Dysfunction
- Anterior Choroidal Artery Embolism
- Anterior Choroidal Artery Fibrillation
- Anterior Choroidal Artery Insufficiency
- Anterior Choroidal Artery Lesions
- Anterior Choroidal Artery Malformations
- Anterior Choroidal Artery Obstruction
- Anterior Choroidal Artery Stasis
- Anterior Choroidal Artery Thrombophlebitis
- Anterior Choroidal Artery Thrombosis
- Anterior Circulation Atrophy
- Anterior Circulation Compression
- Anterior Circulation Diseases
- Anterior Circulation Disorders
- Anterior Circulation Dysfunction
- Anterior Circulation Embolism
- Anterior Circulation Fibrillation
- Anterior Circulation Insufficiency
- Anterior Circulation Lesions
- Anterior Circulation Malformation
- Anterior Circulation Obstruction
- Anterior Circulation Sclerosis
- Anterior Circulation Stasis
- Anterior Circulation Thrombophlebitis
- Anterior Circulation Thrombosis
- Anterior Circulation Tumors
- Anterior Communicating Artery Arteriosclerosis
- Anterior Communicating Artery Atherosclerosis
- Anterior Communicating Artery Atrophy
- Anterior Communicating Artery Degeneration
- Anterior Communicating Artery Diseases
- Anterior Communicating Artery Disorders
- Anterior Communicating Artery Dysfunction
- Anterior Communicating Artery Embolism
- Anterior Communicating Artery Fibrillation
- Anterior Communicating Artery Insufficiency
- Anterior Communicating Artery Lesions
- Anterior Communicating Artery Malformations
- Anterior Communicating Artery Obstruction
- Anterior Communicating Artery Stasis
- Anterior Communicating Artery Thrombophlebitis
- Anterior Communicating Artery Thrombosis
- Anterior Ethmoidal Artery Arteriosclerosis
- Anterior Ethmoidal Artery Atherosclerosis
- Anterior Ethmoidal Artery Atrophy
- Anterior Ethmoidal Artery Degeneration
- Anterior Ethmoidal Artery Diseases
- Anterior Ethmoidal Artery Disorders
- Anterior Ethmoidal Artery Dysfunction
- Anterior Ethmoidal Artery Embolism
- Anterior Ethmoidal Artery Fibrillation
- Anterior Ethmoidal Artery Insufficiency
- Anterior Ethmoidal Artery Lesions
- Anterior Ethmoidal Artery Malformations
- Anterior Ethmoidal Artery Obstruction
- Anterior Ethmoidal Artery Stasis
- Anterior Ethmoidal Artery Thrombophlebitis
- Anterior Ethmoidal Artery Thrombosis
- Anterior Inferior Cerebellar Artery (AICA) Atherosclerosis
- Anterior Inferior Cerebellar Artery (AICA) Diseases
- Anterior Inferior Cerebellar Artery (AICA) Embolism
- Anterior Inferior Cerebellar Artery (AICA) Fibrillation
- Anterior Inferior Cerebellar Artery (AICA) Infarction
- Anterior Inferior Cerebellar Artery (AICA) Insufficiency
- Anterior Inferior Cerebellar Artery (AICA) Malformations
- Anterior Inferior Cerebellar Artery (AICA) Obstruction
- Anterior Inferior Cerebellar Artery (AICA) Stroke
- Anterior Inferior Cerebellar Artery (AICA) Thrombosis
- Anterior Inferior Cerebellar Artery Arteriosclerosis
- Anterior Inferior Cerebellar Artery Arteriosclerosis
- Anterior Inferior Cerebellar Artery Atrophy
- Anterior Inferior Cerebellar Artery Degeneration
- Anterior Inferior Cerebellar Artery Disorders
- Anterior Inferior Cerebellar Artery Dysfunction
- Anterior Inferior Cerebellar Artery Lesions
- Anterior Inferior Cerebellar Artery Thrombophlebitis
- Anterior Temporal Artery Arteriosclerosis
- Anterior Temporal Artery Atherosclerosis
- Anterior Temporal Artery Atrophy
- Anterior Temporal Artery Degeneration
- Anterior Temporal Artery Diseases
- Anterior Temporal Artery Disorders
- Anterior Temporal Artery Dysfunction
- Anterior Temporal Artery Embolism
- Anterior Temporal Artery Fibrillation
- Anterior Temporal Artery Insufficiency
- Anterior Temporal Artery Lesions
- Anterior Temporal Artery Malformations
- Anterior Temporal Artery Obstruction
- Anterior Temporal Artery Stasis
- Anterior Temporal Artery Thrombophlebitis (ATAT)
- Anterior Temporal Artery Thrombosis
- Anti Neutrophil Cytoplasmic Antibody Associated Vasculitis (AAV)
- Anti-HLA Hyperimmunization
- Antoni’s Palsy – Causes, Symptoms, Diagnosis, Treatment
- Aplastic Anemia
- Aplastic Anemia
- Aplastic Marrow Failure
- Aplastic Pancytopenia
- Apparent Mineralocorticoid Excess
- Argentine Hemorrhagic Fever (AHF)
- Arginine Vasopressin Deficiency (AVP-D)
- Argininosuccinase Deficiency
- Argininosuccinate Lyase (ASL) Deficiency
- Argininosuccinic Acid Lyase Deficiency
- Argininosuccinic Aciduria (ASL Deficiency)
- Aromatase Deficiency (CYP19A1-Related Estrogen Biosynthesis Disorder)
- Aromatic L-amino Acid Decarboxylase (AADC) Deficiency
- Aspartoacylase Deficiency (Canavan Disease)
- Aspergillus Niger Infection
- Asplenia
- Asthma Symptoms Causes, Diagnosis, Types
- Astley-Kendall Dysplasia
- Atelosteogenesis Type I
- Atelosteogenesis Type III (AO3)
- Atransferrinemia
- ATTRV122I Amyloidosis
- ATTRV30M Amyloidosis
- Atypical Hemolytic-Uremic Syndrome
- Atypical Hypotonia-Cystinuria Syndrome
- Atypical Trigeminal Teuralgia; Causes, Symptoms
- Aural Myiasis
- Autoimmune Neutropenia (AIN)
- Autoimmune Pancytopenia
- Autoimmune Thrombocytopenia–Primary Immunodeficiency Syndrome
- Autoinflammatory Syndrome with Pyogenic Bacterial Infection and Amylopectinosis
- Autosomal Dominant Aplastic Anemia and Myelodysplasia
- Autosomal Dominant Hereditary Xerocytosis (ADHX)
- Autosomal Recessive Ataxia Due to CoQ10 Deficiency
- Autosomal Recessive Ataxia due to Ubiquinone (Coenzyme Q10) Deficiency
- Autosomal Recessive Axonal Charcot-Marie-Tooth Disease due to a Copper-Metabolism Defect
- Autosomal Recessive Cutis Laxa Type 2 Caused by PYCR1 Mutation
- Autosomal Recessive Cutis Laxa Type 2B (ARCL2B)
- Autosomal Recessive Distal Osteolysis Syndrome (ARDOS)
- Autosomal Recessive DOPA-Responsive Dystonia
- Autosomal Recessive Early-Onset Parkinson Disease 6 (PARK6, PINK1-Related Parkinson Disease)
- Autosomal Recessive Epidermolytic Ichthyosis (AREI)
- Autosomal Recessive Frontotemporal Pachygyria
- Autosomal Recessive Hereditary Hypophosphatemic Rickets (ARHR)
- Autosomal Recessive Hyperinsulinemic Hypoglycemia Due to SUR1 Deficiency
- Autosomal Recessive Hyperinsulinism Due to Kir6.2 Deficiency
- Autosomal Recessive Hypophosphatemic Vitamin-D-Refractory Rickets (ARHR)
- Autosomal Recessive Infantile Hypercalcemia (ARIH
- Autosomal Recessive Infantile Parkinsonism
- Autosomal Recessive Juvenile Parkinson Disease 2
- Autosomal Recessive Limb-Girdle Muscular Dystrophy Type 2E (LGMD2E)
- Autosomal Recessive Limb-Girdle Muscular Dystrophy Type 2N (LGMD2N)
- Autosomal Recessive Secondary Erythrocytosis, Non-Chuvash Type
- Autosomal Recessive Secondary Polycythemia not Associated with VHL (Von Hippel–Lindau)
- Autosomal Recessive Secondary Polycythemia, Non-Chuvash Type
- Autosomal Recessive Severe Congenital Neutropenia (SCN) due to C-X-C Motif Chemokine Receptor 2 (CXCR2) Deficiency
- Autosomal Recessive Severe Congenital Neutropenia (SCN) due to CXCR2 Deficiency
- Autosomal Recessive Severe Congenital Neutropenia (SCN) due to G6PC3 Deficiency
- Autosomal Recessive Severe Congenital Neutropenia due to Glucose-6-Phosphatase Catalytic Subunit 3 (G6PC3) Deficiency
- Autosomal Recessive Severe Congenital Neutropenia due to JAGN1 Deficiency
- Autosomal Recessive Sideroblastic Anemia (AR-CSA)
- Autosomal Recessive Spastic Paraplegia Type 59 (SPG59)
- Autosomal Recessive Spastic Paraplegia Type 60 (SPG60)
- Autosomal Recessive Spastic Paraplegia Type 66 (SPG66)
- Autosomal Recessive Spastic Paraplegia Type 67 (SPG67)
- Autosomal Recessive Spastic Paraplegia Type 69 (SPG69)
- Autosomal Recessive Spastic Paraplegia Type 70 (SPG70)
- Autosomal Recessive Spastic Paraplegia type 71 (SPG71)
- Autosomal Recessive Spastic Paraplegia Type 76 (SPG76)
- Autosomal Recessive Spinocerebellar Ataxia Type 9 (SCAR9)
- Autosomal Sideroblastic Anemia
B
- B‑cell Lymphocytopenia
- B‑cell Lymphocytosis
- B4GALT1-CDG (Beta-1,4- Galactosyltransferase 1 Deficiency)
- B4GALT1-Congenital Disorder of Glycosylation (B4GALT1-CDG)
- Babesiosis
- Baby Rattle Pelvis Dysplasia
- Bacterial Infectious Meningitis
- Bad Breath Causes Symptoms, Diagnosis, Treatment
- Bad breath Treatment, Health Tips 100% Sure
- Bad Breath; Types, Causes, Symptoms
- Bairnsdale Ulcer
- Balint Syndrome
- Banki Syndrome
- Bardet-Biedl Syndrome (BBS)
- Bardet-Biedl Syndrome 11 (BBS11)
- Bardet–Biedl Syndrome (BBS)
- Bardet–Biedl Syndrome (BBS) Caused by Mutation in the BBS5 Gene
- Baroreflex Failure
- Bartonellosis due to Bartonella Henselae Infection
- Basal Ganglia Calcification
- Basal Ganglia Degeneration with Calcification
- Basilar Artery Fenestration
- Basilar Artery Fenestration Atrophy
- Basilar Venous Plexus Strokes
- Basilar Venous Plexus Tumors
- Basopenia
- Behçet-Like Disease Due to A20 Haploinsufficiency (HA20)
- Berardinelli-Seip syndrome
- Bernard-Soulier Syndrome (BSS)
- Bernard–Soulier Syndrome
- Bernard–Soulier Thrombopathy (Bernard–Soulier Syndrome)
- Beta Thalassemia Syndrome
- Beta-1,4-Galactosyltransferase Deficiency (B4GALT1-CDG)
- Beta-Alanine Synthase Deficiency
- Beta-D-Mannosidosis
- Beta-Ketothiolase Deficiency
- Beta-Thalassemia–X-linked Thrombocytopenia Syndrome
- Beta-Ureidopropionase Deficiency
- BH4-Deficient Hyperphenylalaninemia A
- BH4-Deficient Hyperphenylalaninemia Type A
- Binge Type Anorexia Nervosa, Causes, Treatment
- Biotin- or Thiamine-Responsive Encephalopathy Type 2
- Biotinidase Deficiency
- Bird-Headed Dwarfism, Montreal Type
- Birk-Barel Intellectual Disability Dysmorphism Syndrome
- Birk-Barel Type Intellectual Disability
- Blastic NK-Cell Leukemia/Lymphoma
- Blastogenesis Defect (Impaired Lymphocyte Proliferation)
- Bleeding Diathesis due to Thromboxane Synthesis Deficiency.
- Blomstrand Lethal Chondrodysplasia
- Blood Loss Anemia
- Bloom Syndrome
- Body Skin Hyperlaxity due to Vitamin K-Dependent Coagulation Factor Deficiency
- Bolivian Hemorrhagic Fever (BHF)
- Bone Marrow Disorders
- Bone Marrow Failure Syndromes
- Bone Marrow Suppression (Myelosuppression)
- Botulism
Featured articles
Disease A-Z Library
15,000 White Blood Cell (WBC) Count Meaning
A white blood cell count measures the number of leukocytes circulating in one microliter of blood. Under normal conditions, adults have roughly 4,000–11,000 cells/µL. When the count...
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18,000 White Blood Cell (WBC) Count
A white blood cell count measures the number of leukocytes—cells that help your body fight infections and other diseases—in each microliter (µL) of blood. The normal...
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2-Methyl-3-Hydroxybutyricacidemia
2-methyl-3-hydroxybutyricacidemia is a rare inherited metabolic disease. Your body cannot properly break down the amino acid isoleucine and cannot use ketone bodies well. Ketone bodies are...
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3-Methyl-3-Hydroxybutyric Acidemia
3-methyl-3-hydroxybutyric acidemia (the condition most newborn-screening programs and medical references call 2-methyl-3-hydroxybutyric acidemia, or HSD10 disease / MHBD deficiency). It’s a very rare, inherited problem with...
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6-Pyruvoyl-Tetrahydropterin Synthase (PTPS) Deficiency
6-Pyruvoyl-Tetrahydropterin Synthase (PTPS) Deficiency is a rare, inherited metabolic disorder. It belongs to a small group of conditions called tetrahydrobiopterin (BH4) deficiencies. BH4 is a natural...
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Abdominal Pain- Causes, Symptoms, Diagnosis
Abdominal Pain- Causes, Symptoms, Diagnosis is also known as stomach pain or tummy ache, is a common symptom associated with non-serious and serious causes. Common causes of pain in the abdomen...
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Abdominal Pain- Symptoms, Diagnosis
Abdominal Pain- Symptoms, Diagnosis is also known as stomach pain or tummy ache, is a common symptom associated with non-serious and serious causes. Common causes of pain in the abdomen include...
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Absolute Basopenia
Absolute basopenia is a rare hematologic finding characterized by a near‐total absence of basophils—one of the five types of white blood cells that help orchestrate immune...
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Absolute Basophilia
Basophils are a small type of white blood cell made in your bone marrow. They circulate in the blood and carry tiny packets of chemicals such...
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Absolute Eosinopenia
Absolute eosinopenia is a hematological finding characterized by a virtual absence of eosinophils in the peripheral blood. Clinically, it is often defined as an absolute eosinophil...
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Absolute Lymphocytosis
Absolute lymphocytosis occurs when the number of lymphocytes in the blood rises above normal. Lymphocytes are a type of white blood cell that help your body...
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Disease A-Z Library
ALG1 Congenital Disorder of Glycosylation (ALG1-CDG)
ALG1-CDG is a rare, inherited condition that affects how the body attaches sugar chains to proteins and fats. This process is called glycosylation. The ALG1 gene...
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Granulocytopenic Disorder
A granulocytopenic disorder means the number of granulocytes in the blood is lower than normal. Granulocytes are a group of white blood cells that fight germs....
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Agranulocytosis
Agranulocytosis is a very severe form of neutropenia. Neutrophils are a type of white blood cell that fight germs. In agranulocytosis, the number of neutrophils becomes...
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African Iron Overload
African iron overload is a condition in which too much iron slowly builds up in the body, especially in people from parts of sub-Saharan Africa and...
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Nocardiosis
Nocardiosis is an infection caused by Nocardia bacteria. These are thin, branching, gram-positive bacteria that live in soil, dust, and water. They are “aerobic,” which means...
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Aerobic Actinomyces Infection (Better Called Aerobic Actinomycete Infection)
Species in the genus Actinomyces are classically anaerobic or microaerophilic—they prefer little or no oxygen—and cause actinomycosis. By contrast, the organisms that live in oxygen and...
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Types of Acute Lymphocytic Leukemia
Acute lymphocytic leukemia is a fast-growing blood cancer. It starts in the bone marrow, which is the soft center inside bones. The marrow makes new blood...
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Hybrid Acute Leukemia
Hybrid acute leukemia is a fast-growing blood cancer where the blast cells (immature cells) show features of more than one lineage at the same time. In...
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Acute Leukemia of Indeterminate Lineage
Acute leukemia of indeterminate/ambiguous lineage (ALIL/ALAL) is a rare, fast-growing blood cancer that starts in the bone marrow but does not fit cleanly into the usual...
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Acute Leukemia of Ambiguous Lineage
Acute leukemia of ambiguous lineage (ALAL) is a rare, fast-growing blood cancer where the leukemia cells show features of more than one blood cell family at...
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Acquired Primary Erythrocytosis
Acquired primary erythrocytosis means your body has too many red blood cells because of a problem that starts inside the bone marrow itself, and this problem...
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Erythropoietin Stimulating Agents
Erythropoietin (EPO) is a glycoprotein hormone produced by the peritubular cells of the renal cortex. This hormone stimulates red blood cell production in response to low...
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Disease A-Z Library
Red Blood Cell Destruction
Early destruction of red blood cells (RBCs), also known as hemolysis, leads to hemolytic anemia, a condition where RBCs are destroyed faster than the body can replace...
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Combined Monocytopenia
Combined monocytopenia refers to a condition in which a person has a persistently low number of monocytes in the blood—often together with deficiencies or dysfunctions in...
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Isolated Monocytopenia
Isolated monocytopenia means a person has a lower-than-normal number of monocytes in the blood, and this decrease is not accompanied by major abnormalities in the other...
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Persistent Monocytopenia
Monocytes are a type of white blood cell made in the bone marrow. They circulate in the blood for about 1–3 days, then move into tissues...
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Relative Monocytopenia
Relative monocytopenia means the percentage of monocytes is low compared with the other white cells, but the absolute monocyte number can still be normal. In most...
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Severe Low Monocytes
Monocytes are a type of white blood cell that act as first responders in the immune system. They circulate in the blood, migrate into tissues, and...
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Moderate Low Monocytes
Monocytes are a type of white blood cell made in the bone marrow. They circulate in the blood for about a day, then move into tissues...
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Low Monocytes
Monocytes are a type of white blood cell made in the bone marrow that circulate in the blood and then move into tissues where they become...
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