Click on a letter to browse health topics alphabetically or use the search form above.
Back to top- Aarskog disease
- Aarskog Syndrome
- Aarskog-Scott Syndrome
- AAS
- Aase Syndrome
- Aase Syndrome
- Aase-Smith II Syndrome
- Aase-Smith Syndrome II
- AAT
- AAT Deficiency
- Abdominal Migraine
- Abdominal Muscle Deficiency Syndrome
- Abdominal Pain, Age 11 and Younger
- Abdominal Pain, Age 12 and Older
- Abdominal Wall Defect
- Abetalipoproteinemia
- Abiotrophic ophthalmoplegia externa
- ABL
- Ablepharon Macrostomia Syndrome
- Abnormal Cervical Cell Changes, Cone Biopsy (Conization) for
- Abnormal Cervical Cell Changes, Cryosurgery for
- Abnormal Cervical Cell Changes, Laser Surgery
- Abnormal Cervical Cell Changes, LEEP (Loop Electrosurgical Procedure) for
- Abnormal Cervical Cell Changes, Loop Electrosurgical Procedure (LEEP) for
- Abnormal Pap Test
- Abnormal Pap Test, Cervical Biopsy for
- Abnormal Pap Test, Cone Biopsy (Conization) for
- Abnormal Pap Test, Cryosurgery for
- Abnormal Pap Test, LEEP (Loop Electrosurgical Procedure) for
- Abnormal Pap Test, Loop Electrosurgical Procedure (LEEP) for
- Abnormal Vaginal Bleeding
- Abortion
- Abortion, D&C (Dilation and Curettage) for
- Abortion, D&E (Dilation and Evacuation) for
- Abortion, Dilation and Curettage (D&C) for
- Abortion, Dilation and Evacuation (D&E) for
- Abortion, Induced
- Abortion, Manual Aspiration for
- Abortion, Spontaneous
- Abortion, Vacuum Aspiration for
- Abrasions
- Abruptio Placenta
- ABS
- ABS
- Abscessed Tooth
- Absence Defect of Limbs, Scalp and Skull
- Absence of Corpus Callosum, Schinzel Type
- Absence of Menstruation, Primary
- Absorbent products for urinary incontinence
- Abuse, Elder
- Abusive Head Trauma (Shaken Baby Syndrome)
- ACADL
- ACADM Deficiency
- Acampomelic campomelic "Dysplasia"
- Acanthocheilonemiasis
- Acanthocheilonemiasis perstans
- Acanthocytosis
- Acanthocytosis-Neurologic Disorder
- Acantholysis Bullosa
- Acanthosis Bullosa
- Acanthosis Nigricans
- Acanthotic Nevus
- ACC
- ACC
- ACC
- Accessory Atrioventricular Pathways
- Accidental Tooth Loss
- Accutane Embryopathy
- Accutane, Fetal Effects of
- ACD
- ACF with Cardiac Defects
- ACH
- Achalasia
- Achard Thiers Syndrome
- Achiles Tendon Surgery, Deciding About
- Achilles Tendon Problems
- Achilles Tendon Rupture Repair
- Acholuric Jaundice
- Achondrogenesis
- Achondroplasia
- Achondroplastic Dwarfism
- Acid Ceramidase Deficiency
- Acid Maltase Deficiency
- Acidemia, Isovaleric
- Acidemia, Methylmalonic
- Acidemia, Propionic
- ACL (Anterior Cruciate Ligament) Injuries
- ACL (Anterior Cruciate Ligament) Injury, Deciding About Surgery
- ACL (Anterior Cruciate Ligament) Injury, Physical Therapy for
- ACL (Anterior Cruciate Ligament) Surgery
- ACL injury: Exercises to do before treatment
- Aclasis, Tarsoepiphyseal
- ACLS
- ACM
- Acne Rosacea
- Acne Vulgaris
- Acne, Deciding About Isotretinoin for Treatment
- Acne; Should I See My Doctor?
- Acosta's Disease
- Acoustic Neurilemoma
- Acoustic Neuroma
- ACPS II
- ACPS III
- ACPS IV
- ACPS with Leg Hypoplasia
- Acquired Aphasia with Convulsive Disorder
- Acquired Aplastic Anemia
- Acquired Epileptic Aphasia
- Acquired Hypogammaglobulinemia
- Acquired Nephrogenic Diabetes Insipidus
- Acral Dysostosis with Facial and Genital Abnormalities
- acro-dento-osteo-dysplasia
- Acrocallosal Syndrome, Schinzel Type
- Acrocephalopolysyndactyly Type II
- Acrocephalopolysyndactyly Type III
- Acrocephalopolysyndactyly Type IV
- Acrocephalosyndactyly Type I, Subtype I
- Acrocephalosyndactyly Type III
- Acrocephalosyndactyly V (ACS5 or ACS V), Subtype I
- Acrocephalosyndactyly, Type I
- Acrocephaly, Skull Asymmetry, and Mild Syndactyly
- Acrodermatitis Enteropathica
- Acrodermatitis, Infantile Lichenoid
- Acrodermatitis, Papular Infantile
- Acrodysostosis
- Acrofacial Dysostosis, Nager Type
- acrogeria, Gottron type
- Acromegaly
- Acromesomelic Dwarfism
- Acromesomelic Dysplasia
- Acromicric Dysplasia
- Acromicric Skeletal Dysplasia
- acroosteolysis dominant type
- acroosteolysis with osteoporosis and changes in skull and mandible
- Acroosteolysis, Giaccai Type
- Acroosteolysis, Neurogenic
- ACS
- ACS I
- ACS Type III
- ACS1
- ACS3
- ACTH Deficiency
- ACTH-secreting pituitary adenoma
- Actinic Keratosis
- Action Plan for Asthma
- Active Lifestyle
- Active, Having enough Energy to Stay: Quick Tips
- Acupuncture
- Acute Beryllium Disease
- Acute Bronchitis
- Acute Bronchitis, Deciding About Antibiotics
- Acute Coronary Syndrome
- Acute High Altitude Sickness
- Acute Inflammatory Demyelinating Polyradiculoneuropathy (Guillain-Barré Syndrome)
- Acute Labyrinthine Vertigo
- Acute Lung Injury
- Acute multifocal placoid pigment epitheliopathy
- Acute placoid pigment epitheliopathy
- Acute Renal Failure
- Acute Respiratory Distress Syndrome
- Acute Streptococcal Pharyngitis
- Acute T-Cell Leukemia
- Acute T-Cell Lymphoma
- Acute Toxic Epidermolysis
- ACY2 Deficiency
- Acyl-CoA Dehydrogenase Deficiency, Short-Chain
- AD-HIES
- Adamantiades-Behcet's Syndrome
- Adamantinoma
- Adams Oliver Syndrome
- ADD (Attention Deficit Disorder)
- Addison Disease with Cerebral Sclerosis
- Addison's Anemia
- Addison's Disease
- Addison-Biermer Anemia
- Addisonian Pernicious Anemia
- Adducted Thumbs-Mental Retardation
- Adenocystic Carcinoma
- Adenoid Cystic Carcinoma
- Adenomatous polyposis of the colon (APC)
- Adenylosuccinase Deficiency
- Adenylosuccinate Lyase Deficiency
- ADHD (Attention-Deficit/Hyperactivity Disorder)
- ADHD, Deciding About Stimulant Medications
- ADHD: Helping your child get the most out of school
- ADHD: Helping your child get things done
- Adie Syndrome
- Adie's Pupil
- Adie's Syndrome
- Adie's Tonic Pupil
- Adipogenital-Retinitis Pigmentosa Syndrome
- Adiposis Dolorosa
- Adiposogenital Dystrophy
- ADM
- Adolescent Alcohol and Drug Abuse
- Adolescent Depression
- Adolescent Growth and Development, Ages 15 to 18 years
- Adolescent Health
- Adoption as an Alternative to Infertility Treatment, Deciding About
- Adrenal Hyperplasia, Congenital (General)
- Adrenal Virilism
- Adrenocortical carcinoma: Treatment - Health Professional Information [NCI PDQ]
- Adrenocortical carcinoma: Treatment - Patient Information [NCI PDQ]
- Adrenocorticotropic Hormone Deficiency, Isolated
- Adrenogenital Syndrome
- Adrenoleukodystrophy
- Adrenomyeloneuropathy
- Adult Acne
- Adult Respiratory Distress Syndrome
- Adult-Onset Ceroidosis
- Advance Directive
- Advanced Prostate Cancer
- AE
- AEC Syndrome
- AFD
- Afibrinogenemia, Congenital
- AGA
- Agammaglobulinemias, Primary
- Aganglionic Megacolon
- Age-Related Macular Degeneration
- Age-Related Macular Degeneration, Laser Photocoagulation for
- Age-Related Macular Degeneration, Photocoagulation (Laser) for
- Age-Related Macular Degeneration, Photodynamic Therapy for
- Age-related macular degeneration: Coping with reduced vision
- Agenesis of Corpus Callosum
- Agenesis of Corpus Callosum With Chorioretinitis Abnormality
- Agenesis of Corpus Callosum With Infantile Spasms And Ocular Anomalies
- Aggressive fibromatosis
- Aging well: Making your home fall-proof
- Aging, Healthy
- Aging, Sexuality and Physical Changes
- aglossia-adactylia
- Agnogenic Myeloid Metaplasia (AMM)
- Agnosia, Primary Visual
- Agnosis, Primary
- Agranulocytic Angina
- Agranulocytosis, Acquired
- AGU
- Agyria
- AHC
- AHD
- AHDS
- Ahumada-Del Castillo Syndrome
- aHUS
- Aicardi Syndrome
- AIDS Dysmorphic Syndrome
- AIDS-related lymphoma: Treatment - Health Professional Information [NCI PDQ]
- AIDS-related lymphoma: Treatment - Patient Information [NCI PDQ]
- AILD
- AIP
- Airsickness
- Akureyri Disease
- Alagille Syndrome
- Alan: Coping with change after a heart attack
- Albers-Schonberg Disease
- Albinism with Hemorrhagic Diathesis and Pigmented Reticuloendothelial Cells
- Albinism, oculocutaneous
- Albright Syndrome
- Alcaptonuria (alternate spelling for Alkaptonuria)
- Alcock's Syndrome
- Alcohol Abuse and Dependence
- Alcohol Abuse, Do You Have a Drinking Problem Interactive Tool
- Alcohol Abuse, Teen
- Alcohol abuse: Dealing with teen substance use
- Alcohol and Drug Problems
- Alcohol and Substance Abuse in PTSD
- Alcohol Effects on a Fetus
- Alcohol problems: Helping someone get treatment
- Alcohol problems: How to stop drinking
- ALD
- Aldosteronism With Normal Blood Pressure
- Aldosteronism, Primary
- Alexander Disease
- Algodystrophy
- Algoneurodystrophy
- Alkaptonuria
- Alkaptonuric Ochronosis
- Allan Herndon Syndrome
- Allan-Herndon-Dudley Mental Retardation
- Allan-Herndon-Dudley Syndrome
- Allergic Angiitis and Granulomatosis
- Allergic Granulomatosis
- Allergic Granulomatosis and Angiitis
- Allergic Granulomatous Angiitis of Cronkhite-Canada
- Allergic Interstitial Pneumonitis
- Allergic Purpura
- Allergic Reaction
- Allergic Rhinitis
- Allergic Rhinitis, Allergy Shots for
- Allergic Rhinitis, Immunotherapy (Allergy Shots) for
- Allergic Vasculitis
- Allergies
- Allergies in children: Giving an epinephrine shot to a child
- Allergies to Insect Stings
- Allergies: Avoiding indoor triggers
- Allergies: Avoiding outdoor triggers
- Allergies: Giving yourself an epinephrine shot
- Allergy shots (immunotherapy) for allergic rhinitis
- Allergy shots (immunotherapy) for asthma
- Allergy Shots for Allergic Rhinitis and Allergic Asthma, Deciding About
- Allergy Shots for Insect Allergies, Deciding About
- Allergy Shots for Insect Sting Allergies
- Allergy to Natural Rubber (Latex)
- Allogeneic stem cell transplant
- Alobar Holoprosencephaly
- Alopecia (Hair Loss)
- Alopecia (Hair Loss), Transplant for
- Alopecia Areata
- Alopecia Areata
- Alopecia Celsi
- Alopecia Cicatrisata
- Alopecia cicatrisata
- Alopecia Circumscripta
- Alopecia-Poliosis-Uveitis-Vitiligo-Deafness-Cutaneous-Uveo-Oto Syndrome
- Alpers Diffuse Degeneration of Cerebral Gray Matter with Hepatic Cirrhosis
- Alpers Disease
- Alpers Progressive Infantile Poliodystrophy
- Alpha High-Density Lipoprotein Deficieny
- Alpha Thalassemia X-linked Mental Retardation Syndrome
- Alpha-1
- Alpha-1 Antitrypsin Deficiency Genetic Testing
- Alpha-1,4 Glucosidase Deficiency
- Alpha-1-Antitrypsin Deficiency
- Alpha-Galactosidase A Deficiency
- Alpha-Galactosidase B Deficiency
- Alpha-GalNAc Deficiency, Schindler Type
- Alpha-L-Fucosidase Deficiency
- Alpha-Mannosidase B Deficiency
- Alpha-Mannosidosis
- Alpha-N-Acetylgalactosaminidase Deficiency, Schindler Type
- Alpha-NAGA Deficiency, Schindler Type
- Alpha-Neuraminidase Deficiency
- Alphalipoproteinemia
- Alport Syndrome
- Altered Alertness
- Alternating Hemiplegia of Childhood
- Alternating Hemiplegia Syndrome
- Alternative Diet Programs
- Alternative Medicine
- Altitude Sickness
- Alveolar Capillary Dysplasia
- Alveolar Lipoproteinosis
- Alveolar sarcoma of soft parts
- Alveolar Soft Part Sarcoma
- Alveolitis, Extrinsic Allergic
- Alveolocapillary block
- Alymphocytosis, Pure
- Alzheimer's Disease
- Alzheimer's Disease Medication Treatment, Deciding About
- Alzheimer's Disease, Deciding About Nursing Homes
- Amaurotic Familial Idiocy, Adult
- Amblyopia
- Amblyopia: Wearing an eye patch
- AMC
- Ameloblastic Carcinoma
- Ameloblastoma
- Amelogenesis Imperfecta
- Amenorrhea, Primary
- Amenorrhea-Galactorrhea, Nonpuerperal
- Amenorrhea-Galactorrhea-FSH Decrease Syndrome
- American Trypanosomiasis
- Aminoacylase-2 Deficiency
- AMN
- Amniocentesis, Deciding About
- Amniotic Band Disruption Complex
- Amniotic Band Sequence
- Amniotic Band Syndrome
- Amniotic Bands
- Amniotic Rupture Sequence
- AMPPE
- Amputation First Aid
- AMS
- AMS
- Amsterdam syndrome
- Amylo-1,6-Glucosidase Deficiency
- Amyloidosis
- Amylopectinosis
- Amyotrophic Chorea with Acanthocytosis, Familial
- Amyotrophic Lateral Sclerosis (ALS)
- AN
- Anabolic Steroid Abuse
- Anal Atresia
- Anal cancer: Treatment - Health Professional Information [NCI PDQ]
- Anal cancer: Treatment - Patient Information [NCI PDQ]
- Anal Fissure
- Anal Membrane
- Anal Problems
- Anal Stenosis
- Analphalipoproteinemia
- Anaphylactoid Purpura
- Anaplastic Astrocytoma
- Anarthritic Syndrome
- Andersen Disease (GSD IV)
- Andersen Glycogenosis
- Anderson-Fabry Disease
- Anderson-Warburg Syndrome
- Androgen Insensitivity Syndrome, Partial
- Androgenetic Alopecia (Hair Loss, Inherited)
- Androgenetic Alopecia (Hair Loss, Inherited), Deciding about Treatment
- Anemia, Autoimmune Hemolytic
- Anemia, Blackfan Diamond
- Anemia, Congenital Pure Red Cell
- Anemia, Fanconi
- Anemia, Folic Acid Deficiency
- Anemia, Hemolytic with PGK Deficiency
- Anemia, Hemolytic, Acquired Autoimmune
- Anemia, Hemolytic, Cold Antibody
- Anemia, Hemolytic, Warm Antibody
- Anemia, Hereditary Nonspherocytic Hemolytic
- Anemia, Hereditary Spherocytic Hemolytic
- Anemia, Idiopathic Autoimmune Hemolytic
- Anemia, Iron-Deficiency
- Anemia, Megaloblastic
- Anemia, Pernicious
- Anemia, Vitamin B12 Deficiency
- Anemias, Sideroblastic
- Anencephaly
- Anesthesia
- Aneurysm, Brain
- Angelman Syndrome
- Anger, Hostility, and Violent Behavior
- Angiitis
- Angina (Stable), Deciding About Angioplasty
- Angina (Unstable), Stents for
- Angina, Unstable
- Angina: Living with a pacemaker or ICD
- Angio-Osteohypertrophy Syndrome
- Angioedema and Urticaria
- Angioedema, Hereditary
- Angiofollicular Lymph Node Hyperplasia
- Angiogram for Coronary Artery Disease, Deciding About
- Angiokeratoma Corporis Diffusum
- Angiokeratoma Diffuse
- Angiomatosis Retinae
- Angiomatous Lymphoid
- Angioneurotic Edema, Hereditary
- Angioplasty for coronary artery disease
- Angioplasty for peripheral arterial disease of the legs
- Angioplasty for Stable Angina, Deciding About
- Angioplasty with stent placement for heart attack and unstable angina
- Anhidrotic ectodermal dysplasia
- Anhidrotic Ectodermal Dysplasia
- Animal and Human Bites
- Aniridia
- Aniridia Cerebellar Ataxia Mental Deficiency
- Aniridia, Partial-Cerebellar Ataxia-Mental Retardation
- Aniridia, Partial-Cerebellar Ataxia-Oligophrenia
- Aniridia-Cerebellar Ataxia-Mental Retardation
- Ankle Sprain
- Ankle Sprain, Exercises for
- Ankle sprain: Using a compression wrap
- Ankle, Foot, and Toe Injuries
- Ankle, Foot, and Toe Problems, Noninjury
- Ankylglossia
- Ankyloblepharon-Ectodermal Defects-Cleft Lip/Palate
- Ankylosing Spondylitis
- Anodontia
- Anodontia Vera
- Anomalous Dysplasia of Dentin
- Anorectal Malformations
- Anorexia Nervosa
- Anorexia Nervosa, Cognitive-Behavoral Therapy for
- anovulation with hyperandrogenism
- Anterior Bowing of the Legs with Dwarfism
- Anterior Cruciate Ligament (ACL) Injuries
- Anterior Cruciate Ligament (ACL) Injury, Deciding About Surgery
- Anterior Cruciate Ligament (ACL) Injury, Physical Therapy for
- Anterior Cruciate Ligament (ACL) injury: Exercises to do before treatment
- Anterior cruciate ligament (ACL) surgery
- Anthrax
- Antibiotics for an Ear Infection, Deciding About
- Antibiotics, Using Wisely
- Antibody Deficiency
- Anticoagulant Safety Tips
- Anticoagulants for atrial fibrillation, Safely taking
- Anticoagulants for deep vein thrombosis, Safely taking
- Anticoagulants for Stroke Prevention, Deciding About
- Anticoagulants: Vitamin K and your diet
- Antidepressants, Taking safely
- Antidepressants; Should I Stop Taking?
- Antidepressants; Should I Take Them when I am Pregnant?
- Antidepressants; Should I Take Them?
- Antihypertensive Medications, Deciding About
- Antioxidants
- Antiphospholipid Antibody Syndrome
- Antiphospholipid Syndrome
- Antiretroviral medicines for HIV infection, Taking
- Antisocial Personality Disorder
- Antithrombin Deficiency
- Antitrypsin Deficiency
- Antiviral Medicines for Flu, Deciding About Taking
- Antiviral Medicines for HIV Infection, Should I Start Taking Even Though I Have No Symptoms?
- Antiviral Therapy for Chronic Hepatits B, Deciding About
- Antiviral Therapy for Hepatitis C, Deciding About
- Antley Bixler Syndrome
- Antopol Disease
- Anxiety
- Anxiety Attack
- Anxiety: Supportive care - Health Professional Information [NCI PDQ]
- Anxiety: Supportive care - Patient Information [NCI PDQ]
- Anxiety: Using positive thinking
- Aorta Arch Syndrome
- Aortic and Mitral Atresia with Hypoplasic Left Heart Syndrome
- Aortic Aneurysm
- Aortic Insufficiency
- Aortic Valve Regurgitation
- Aortic Valve Replacement Surgery, Deciding About
- Aortic Valve Replacement, Mechanical or Tissue Valve?
- Aortic Valve Stenosis
- Aortobifemoral bypass for peripheral arterial disease
- Aparoschisis
- APBD
- APECED Syndrome
- Apert Syndrome
- Aphthous Stomatitis, Recurrent
- Aphthous Ulcer, Recurrent
- Aplasia Cutis Congenita
- Aplasia Cutis Congenita with Terminal Transverse Limb Defects
- Aplasia, Congenital Pure Red Cell
- Aplastic Anemia with Congenital Anomalies
- APLS
- APMPPE
- Apnea, Infantile
- Apnea, Postanesthetic
- Apocrine Duct Occlusion
- Appendicitis
- Apperceptive Agnosia
- Apple Peel Syndrome
- Apraxia
- Apraxia, Oculomotor, with Congenital Contractures and Muscle Atrophy
- APS
- Arachnitis
- Arachnodactyly
- Arachnodactyly, Contractural Beals Type
- Arachnoid Cysts
- Arachnoidal Fibroblastoma
- Arachnoiditis
- ARDS
- ARG Deficiency
- Arginase Deficiency
- Argininemia
- Arginino Succinase Deficiency
- Argininosuccinate Lyase Deficiency
- Argininosuccinic Acid Synthetase Deficiency
- Argininosuccinic Aciduria
- Argonz-Del Castillo Syndrome
- Arhinencephaly
- Arm Injuries
- Arm Problems, Noninjury
- Armenian Syndrome
- Arnold-Chiari Malformation
- Aromatherapy (Essential Oils Therapy)
- Arrhythmogenic Right Ventricular Cardiomyopathy (ARVC)
- ARSA
- Arteriohepatic Dysplasia
- Arteriosclerosis, Retina
- Arteriovenous Malformation
- Arteritis, Takayasu
- Arthritic Rheumatoid Disease
- Arthritis (Osteoarthritis)
- Arthritis Urethritica
- Arthritis, Infectious
- Arthritis, Juvenile Rheumatoid
- Arthritis, Psoriatic
- Arthritis, Rheumatoid
- Arthritis: Managing rheumatoid arthritis
- Arthro-Ophthalmopathy
- arthrodentoosteodysplasia
- Arthrodesis (Spinal Fusion) for Low Back Pain
- Arthrogryposis Multiplex Congenita
- Arthrogryposis Multiplex Congenita, Distal, Type IIA
- Arthropathic Psoriasis
- Arthroplasty for rheumatoid arthritis
- Arthroscopy for rheumatoid arthritis
- Arthroscopy for TM disorders
- Artificial Insemination
- Artificial sphincter for urinary incontinence in men
- Arylsulfatase A Deficiency
- Arylsulfatase-B Deficiency
- AS
- ASA Deficiency
- ASD
- Aseptic Necrosis
- Asherman's Syndrome
- Asherson's Syndrome
- Ashkenazi Jewish Genetic Panel (AJGP)
- Asian Medicine
- Asiatic Cholera
- Ask-the-Doctor Checklist
- ASL Deficiency
- ASP
- ASP Deficiency
- ASP sarcoma
- ASPA Deficiency
- Aspartoacylase Deficiency
- Aspartylglucosaminidase Deficiency
- Aspartylglucosaminuria
- Aspartylglycosaminuria
- Asperger's Syndrome
- Asphyxiating Thoracic Dysplasia
- Asplenia Syndrome
- ASPS
- ASS Deficiency
- Assertive behavior for reducing stress
- Associative Agnosia
- Asthma
- Asthma action plan
- Asthma During Pregnancy
- Asthma in Children
- Asthma in children: Helping a child use a metered-dose inhaler and mask spacer
- Asthma in Teens and Adults
- Asthma, Allergy Shots for
- Asthma, Immunotherapy (Allergy Shots) for
- Asthma: Identifying your triggers
- Asthma: Measuring peak flow
- Asthma: Taking charge of your asthma
- Asthma: Using a dry powder inhaler
- Asthma: Using a metered-dose inhaler
- Asthma: Using an asthma action plan
- Astrocytoma
- Astrocytoma Grade I
- Astrocytoma, grades 3-4
- Astrocytoma, Malignant
- Asymmetric Crying Facies with Cardiac Defects
- Asymmetrical Septal Hypertrophy
- AT
- AT 3
- AT III Deficiency
- Ataxia Telangiectasia
- Ataxia with Lactic Acidosis, Type II
- Ataxia with Vitamin E Deficiency
- Ataxia, Friedreich's
- Ataxia, Hereditary, Autosomal Dominant
- ATD
- Athabaskan Brainstem Dysgenesis Syndrome (ABDS)
- Atherectomy for coronary artery disease
- Athlete's Foot
- ATL
- Atopic Dermatitis
- Atopic Dermatitis, Photochemotherapy (PUVA) for
- Atopic Dermatitis, Phototherapy for
- Atopic Dermatitis, PUVA (Photochemotherapy) for
- Atopic dermatitis: Taking care of your skin
- ATR-X Syndrome
- Atresia of Esophagus with or without Tracheoesophageal Fistula
- Atrial Fibrillation
- Atrial Fibrillation, Catheter Ablation for
- Atrial Fibrillation, Deciding About Cardioversion
- Atrial Fibrillation, Defibrillation for
- Atrial Fibrillation, Electrical Cardioversion for
- Atrial Fibrillation, Maze Procedure for
- Atrial Fibrillation, Pacemaker for
- Atrial fibrillation: Living with a pacemaker or ICD
- Atrial fibrillation: Taking anticoagulants safely
- Atrial Septal Defects
- atriodigital dysplasia
- Atrioseptal Defects
- Atrioventricular (AV) Block
- Atrioventricular Canal Defects
- Atrioventricular Septal Defect
- Atrophia Bulborum Hereditaria
- Atrophy of Type I Fibers
- Attention Deficit Disorder (ADD)
- Attention Deficit Hyperactivity Disorder (ADHD)
- Attention Deficit Hyperactivity Disorder, Deciding About Stimulant Medications
- Atypical Hemolytic Uremic Syndrome
- Atypical Hyperphenylalaninemia
- Atypical Mole Syndrome
- Atypical PKU
- Auriculotemporal Syndrome
- Autism
- Autism, Ataxia, and Loss of Purposeful Hand Use
- Autogenic Training
- Autographism
- Autoimmune Hemolytic Anemia
- Autoimmune Hemolytic Anemia
- Autoimmune Polyendocrine Syndrome Type II
- Autoimmune Polyglandular Disease Type I
- Autoimmune Thyroiditis
- Autoimmune-Polyendocrinopathy-Candidias
- Autologous stem cell transplant
- autonomic control, congenital failure of
- Autopsy, Deciding About
- Autosomal Dominant Centronuclear Myopathy
- Autosomal dominant Emery-Dreifuss muscular dystrophy
- Autosomal Dominant Long QT Syndrome
- Autosomal Dominant OPMD
- Autosomal Dominant Spinocerebellar Degeneration
- Autosomal Recessive Centronuclear Myopathy
- Autosomal recessive Emery-Dreifuss muscular dystrophy
- Autosomal Recessive Long QT Syndrome
- Autosomal Recessive OPMD
- Avascular Necrosis of Bone
- AVED
- Avian Influenza (Bird Flu)
- AVM
- Avoiding Mercury in Fish
- AVSD
