Medical Conditions,
Clearly Explained
Evidence-based guides for patients and caregivers, backed by current scientific literature.
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Every page is grounded in published research with inline citations you can verify yourself.
Written for Patients
Complex medical topics translated into clear, actionable language you can understand.
Continuously Updated
Content is regenerated as new research is published so it stays current.
Explore Conditions
Browse our growing library of rare condition guides
Solitary Fibrous Tumor (SFT)
Navigate your Solitary Fibrous Tumor (SFT) diagnosis. Learn about symptoms, STAT6 testing, risk stratification, and treatment options in this patient guide.
Sjögren's Syndrome
Navigate your Sjögren’s Syndrome diagnosis with this comprehensive patient guide. Access resources on symptoms, treatment, daily management, and long-term care.
Glanzmann Thrombasthenia
Learn about Glanzmann Thrombasthenia (GT), a rare bleeding disorder. Understand why you bleed despite normal platelet counts, plus diagnosis and treatment options.
Factor XIII Deficiency
Understand Factor XIII deficiency symptoms, diagnosis, and treatment. Learn why standard tests fail, how prophylaxis works, and how to prevent complications.
Gastroparesis
Diagnosed with gastroparesis? This patient guide covers causes, symptoms, diagnosis, and treatments including diet and medication. Start your management journey here.
Gaucher Disease
Comprehensive guide to Gaucher disease for patients. Learn about symptoms, the three types, genetic diagnosis, and treatment options like ERT and SRT.
Multiple Myeloma
A complete patient guide to Multiple Myeloma. Understand diagnosis, treatment steps, and lab results. Includes a critical safety alert on protecting your kidneys.
Parkinson's Disease
Navigate your Parkinson's Disease diagnosis with this comprehensive guide. Access resources on symptoms, treatment options, progression, and living well.
Von Willebrand Disease
Learn about Von Willebrand Disease (VWD), the most common inherited bleeding disorder. Understand symptoms, types, diagnosis, and treatment options.
Noonan syndrome
Learn the basics of Noonan syndrome, a genetic RASopathy. Understand common signs like short stature and heart defects, genetic causes, and what to expect.
Wilson disease
Recently diagnosed with Wilson disease? Learn what this genetic condition means, why copper builds up, and how treatments help you live a full, normal life.
Oculopharyngeal muscular dystrophy
Learn the basics of Oculopharyngeal Muscular Dystrophy (OPMD). Understand early symptoms like eyelid drooping, swallowing difficulty, and disease progression.
Cartilage-hair hypoplasia
Learn about a Cartilage-Hair Hypoplasia (CHH) diagnosis. Understand RMRP gene mutations, newborn TREC screening, immune risks, and immediate next steps.
Progressive supranuclear palsy
Learn about Progressive Supranuclear Palsy (PSP). Understand why this rare condition is often misdiagnosed as Parkinson's, key symptoms, and your next steps.
Familial Mediterranean fever
Understand Familial Mediterranean Fever (FMF). Learn about recurring fevers, MEFV gene mutations, daily colchicine treatment, and protecting your kidneys.
Multiple osteochondromas
Learn about Multiple Osteochondromas (HME), a rare genetic condition causing benign bone bumps. Understand childhood growth, adult stability, and treatments.
Steinert myotonic dystrophy
Learn the basics of Steinert Myotonic Dystrophy (DM1). Understand what causes this multisystemic disorder, how symptoms progress, and what to expect next.
Recessive X-linked ichthyosis
Learn about Recessive X-linked Ichthyosis (RXLI). Understand the causes, symptoms like dark scales, genetic inheritance, and daily skin management strategies.
Follicular lymphoma
Learn about Follicular Lymphoma, an indolent B-cell cancer. This comprehensive guide covers symptoms, pathology reports, treatment options, and survivorship.
Phenylketonuria
Explore our comprehensive Phenylketonuria (PKU) resource guide. Learn about the PKU diet, genetic subtypes, medications, and managing care for life.
Familial or sporadic hemiplegic migraine
Learn about hemiplegic migraine, a rare condition causing temporary one-sided weakness. Understand the difference between familial (FHM) and sporadic (SHM).
Mucopolysaccharidosis type 1
Learn what an MPS I (Mucopolysaccharidosis type 1) diagnosis means for your child. Understand the disease spectrum, early symptoms, and next treatment steps.
Rett syndrome
Has your child been diagnosed with Rett syndrome? Learn about the MECP2 gene, the regression phase, building a care team, and the treatment trofinetide.
Myasthenia gravis
Explore our comprehensive patient guide to Myasthenia Gravis (MG). Learn about key symptoms, subtypes, diagnosis, treatments, and how to build your care team.
Neurofibromatosis type 1
A comprehensive patient guide to Neurofibromatosis Type 1 (NF1). Understand symptoms, 2021 diagnostic criteria, tumor risks, and new MEK inhibitor treatments.
Hereditary spherocytosis
Explore our comprehensive patient and family guide to Hereditary Spherocytosis (HS). Learn about symptoms, diagnosis, treatment options, and long-term care.
Beckwith-Wiedemann syndrome
Learn the basics of Beckwith-Wiedemann Syndrome (BWS). Understand common features, genetic causes, and why early tumor screening is vital for your child.
Sickle cell anemia
Explore our comprehensive Sickle Cell Disease patient guide. Learn about genetics, symptom management, emergency care, hydroxyurea, and new gene therapies.
Hereditary elliptocytosis
Explore our comprehensive patient guide to Hereditary Elliptocytosis (HE). Learn about symptoms, genetics, diagnosis, and treatment for this blood disorder.
Hirschsprung disease
Learn the basics of Hirschsprung disease, a congenital bowel condition in children. Understand the causes, how it affects the intestine, and what to expect.
Huntington disease
Learn the basics of Huntington disease (HD), an inherited neurodegenerative disorder. Understand the genetic causes, the triad of symptoms, and care options.
Charcot-Marie-Tooth disease type 1A
Learn about Charcot-Marie-Tooth disease type 1A (CMT1A), its causes, symptoms like high arches, and how to manage this hereditary peripheral neuropathy.
Fragile X syndrome
Navigate a Fragile X Syndrome (FXS) diagnosis with this comprehensive family guide. Learn about FMR1 genetics, symptoms, therapies, and lifelong care planning.
Ehlers Danlos Syndrome (EDS)
Learn what an Ehlers-Danlos Syndrome (EDS) diagnosis means. Understand the 13 subtypes, how collagen defects cause multisystem symptoms, and next steps.
Acute myeloid leukemia
Navigate your Acute Myeloid Leukemia (AML) diagnosis with this comprehensive resource. Learn about symptoms, bone marrow biopsies, mutations, and treatment.
Marfan syndrome
Learn the basics of Marfan syndrome. Discover how FBN1 gene mutations affect connective tissue, what it means for life expectancy, and common myths debunked.
Mucopolysaccharidosis type 4
Navigate a Morquio Syndrome (MPS IV) diagnosis with our patient guide. Learn about genetics, ERT treatments, bone symptoms, and building an expert care team.
Cystic fibrosis
Learn how to navigate a cystic fibrosis diagnosis with our comprehensive guide. Understand CFTR modulators, diagnostic testing, and daily care strategies.
Congenital isolated hyperinsulinism
Find evidence-based guidance in our Congenital Hyperinsulinism (CHI) resource guide. Learn about diagnosis, genetic subtypes, treatments, and long-term care.
Hereditary hemorrhagic telangiectasia
Learn about Hereditary Hemorrhagic Telangiectasia (HHT). Discover symptoms like nosebleeds, genetic causes, AVM risks, and how to find expert treatment.
Retinitis pigmentosa
Learn about Retinitis Pigmentosa (RP), from recognizing early symptoms like night blindness to genetic testing, gene therapy, and managing vision loss.
Fetal and neonatal alloimmune thrombocytopenia
Learn about Fetal and Neonatal Alloimmune Thrombocytopenia (FNAIT). Understand why it causes low platelets in newborns, symptoms to watch for, and treatments.
Primary sclerosing cholangitis
Just diagnosed with Primary Sclerosing Cholangitis (PSC)? Learn about bile duct inflammation, IBD connections, symptom management, and liver transplants.
Duane retraction syndrome
Has your child been diagnosed with Duane Retraction Syndrome (DRS)? Understand this rare eye miswiring condition and what it means for their vision and care.
Giant cell arteritis
Explore our comprehensive patient guide to Giant Cell Arteritis (GCA). Learn about emergency warning signs, diagnosis, and effective steroid treatments.
Cleft lip and alveolus
Learn about Cleft Lip and Alveolus (CLA) in babies. Understand the diagnosis, how it differs from cleft palate, and what to expect for your child's care.
Juvenile idiopathic arthritis
A comprehensive guide for parents navigating a Juvenile Idiopathic Arthritis (JIA) diagnosis. Learn about symptoms, subtypes, treatments, and managing care.
Rare cutaneous lupus erythematosus
Learn about rare skin lupus variants like LET, CHLE, and BSLE. Understand their unique symptoms, common triggers like cold or sun, and when to seek urgent care.
Systemic lupus erythematosus
Learn what Systemic Lupus Erythematosus (SLE) is and how it affects the body. Understand the causes, who is at risk, and new treatments for managing lupus.
Down syndrome
A comprehensive guide for parents navigating a Down syndrome diagnosis. Learn about genetics, health monitoring, early intervention, and care team building.
Alpha-gal Syndrome
Explore the complete patient guide to Alpha-gal Syndrome (AGS). Learn about tick bite causes, delayed allergic reactions, safe diets, and diagnostic tests.
Dermatitis herpetiformis
Learn about Dermatitis Herpetiformis (DH), the skin version of celiac disease. Understand the itchy rash, diagnostic tests, dapsone, and the gluten-free diet.
Acromegaly
Explore our comprehensive patient guide to acromegaly. Learn about symptoms, diagnosis, treatment options, and long-term management of this rare condition.
Non-functioning pituitary adenoma
A complete patient guide to non-functioning pituitary adenoma (NFPA). Learn about symptoms like vision loss, hormone deficiency, and treatment options.
Tumor of endocrine glands
Learn about endocrine tumors, including thyroid, pituitary, adrenal, and neuroendocrine tumors (NETs). Understand symptoms, diagnosis, and treatment options.
Osteogenesis imperfecta
Navigate your child's Osteogenesis Imperfecta (OI) diagnosis with our comprehensive parent guide. Learn about treatments, care teams, and brittle bones.
47,XYY syndrome
Learn the facts about 47,XYY syndrome (Jacob's syndrome). Understand the causes, debunk harmful myths, and discover how early intervention helps boys thrive.
Glutaryl-CoA dehydrogenase deficiency
Learn the basics of Glutaric Acidemia Type 1 (GA1). Understand your child's diagnosis, metabolic crises, the low-lysine diet, and long-term management.
Joubert syndrome and related disorders
Learn the essentials of Joubert syndrome and related disorders. This parent guide covers early signs, diagnosis, genetics, treatments, and finding community.
Behçet disease
Learn the signs, symptoms, and treatments for Behçet’s disease. Understand how this rare systemic vasculitis is diagnosed and managed for long-term remission.
Myotonic dystrophy
Explore our comprehensive Myotonic Dystrophy (DM) resource guide. Learn about DM1 vs DM2, hidden symptoms, building a care team, and anesthesia precautions.
MELAS
Learn about MELAS (Mitochondrial Encephalomyopathy, Lactic Acidosis, and Stroke-like episodes). Understand the m.3243A>G mutation, heteroplasmy, and genetics.
Distal myopathy, Welander type
Learn about Welander Distal Myopathy (WDM). Understand the symptoms, slow progression, TIA1 gene mutation, and how it differs from conditions like ALS.
Scleroderma
Recently diagnosed with scleroderma? Learn the first steps to take, the difference between localized and systemic types, and why a specialist is crucial.
Sarcoidosis
Learn the basics of a sarcoidosis diagnosis. Understand what granulomas are, how the condition affects the lungs, and why watchful waiting is often recommended.
Beta-thalassemia major
Learn about Beta-thalassemia major (Cooley's Anemia) in this guide for parents. Understand genetic causes, blood transfusions, and curative gene therapies.
Lymphatic filariasis
Welcome to the comprehensive patient guide for Lymphatic Filariasis (LF). If you or a loved one has been diagnosed with this condition, you likely have many questions and may be feeling overwhelmed. A
Sporotrichosis
Learn about sporotrichosis (Rose Gardener's disease), a fungal infection from plants or cats. Understand symptoms, misdiagnosis, and how to get treated.
Vernal keratoconjunctivitis
Learn about Vernal Keratoconjunctivitis (VKC) in children. Understand the symptoms, severe complications, daily care, and how to protect your child's vision.
Amelogenesis imperfecta
Learn about Amelogenesis Imperfecta (AI), a genetic disorder affecting tooth enamel. Understand symptoms, treatment options, and why early care is vital.
Schistosomiasis
Read our comprehensive patient guide to Schistosomiasis (bilharzia). Learn about symptoms, diagnostic tests, praziquantel treatment, and long-term care.
Brugada syndrome
Explore our patient guide to Brugada syndrome. Learn about symptoms, SCN5A genetics, ECG patterns, treatment options, and how to safely manage triggers.
Filariasis
Learn the basics of filariasis, a parasitic infection caused by insect bites. Understand the three main types, early symptoms, and treatment options.
Fetal alcohol syndrome
Learn the four key features of Fetal Alcohol Spectrum Disorders (FASD), including facial signs and brain impacts. Find essential support for caregivers.
Loiasis
Learn about Loiasis (African eye worm), including how the Loa loa parasite is transmitted by Chrysops flies, key symptoms, and safe treatment options.
Onchocerciasis
Explore our complete patient guide to Onchocerciasis (River Blindness). Learn about transmission, skin and eye symptoms, diagnosis, and treatment options.
Open spinal dysraphism
Learn the first steps after an open spinal dysraphism (OSD) diagnosis. Understand the two-hit hypothesis, myelomeningocele, and care for your baby.
Cleft palate
Learn what to expect after a cleft palate diagnosis. Navigate feeding strategies, palatoplasty surgery timelines, and long-term care for your child's health.
Hemoglobin C disease
Learn the facts about Hemoglobin C disease (HbCC), a mild genetic blood condition. Understand the differences from sickle cell anemia and what to expect.
Corneal dystrophy
Explore our complete patient guide to corneal dystrophy. Learn about symptoms, major subtypes like Fuchs, and treatment options to protect your vision.
Anterior uveitis
Learn about anterior uveitis (iritis), the most common eye inflammation. Discover symptoms, HLA-B27 causes, diagnosis, treatments, and how to protect vision.
Charcot-Marie-Tooth disease/Hereditary motor and sensory neuropathy
Just diagnosed with Charcot-Marie-Tooth disease (CMT)? Learn the basics of hereditary motor and sensory neuropathy, including types and symptom management.
Non-immune hydrops fetalis
Learn about non-immune hydrops fetalis (NIHF), a rare fetal condition causing fluid buildup. Understand causes, diagnostic tests, and next steps for parents.
Systemic primary carnitine deficiency
Learn the basics of Systemic Primary Carnitine Deficiency (SPCD). Understand causes, the role of the SLC22A5 gene, and why early L-carnitine treatment works.
GNE myopathy
Learn the basics of GNE Myopathy, a rare progressive muscle disease. Navigate your diagnosis, understand the biology, and learn how to build your care team.
Turner syndrome
Explore our comprehensive guide to Turner syndrome. Learn about genetic subtypes, the gold standard for diagnosis, hormone therapies, and building a care team.
Primary biliary cholangitis
Recently diagnosed with Primary Biliary Cholangitis (PBC)? Learn about this manageable autoimmune liver disease, treatments, symptoms, and what to expect.
Amyotrophic lateral sclerosis
Recently diagnosed with Amyotrophic Lateral Sclerosis (ALS)? Learn about your next steps, including building a care team, symptom management, and treatments.
Primary ciliary dyskinesia
Explore this comprehensive Primary Ciliary Dyskinesia (PCD) resource guide. Learn about common symptoms, accurate diagnosis, and daily airway clearance.
Facioscapulohumeral dystrophy
Learn what a Facioscapulohumeral Dystrophy (FSHD) diagnosis means for you. Understand symptoms, disease progression, DUX4 research, and life expectancy.
Fabry disease
Learn about Fabry disease, a rare genetic condition. Understand the symptoms, diagnosis, and treatment options, and find out how to build your care team.
Erythroderma desquamativum
Learn about Leiner's disease (erythroderma desquamativum) in infants. Understand the core symptoms, immune system causes, and hospital treatment options.
Prolactinoma
Understand your prolactinoma diagnosis. Learn what causes these benign pituitary tumors, how they impact your hormone levels, and why the outlook is excellent.
American trypanosomiasis
Explore our patient guide to American trypanosomiasis (Chagas disease). Learn about symptoms, diagnosis, antiparasitic treatments, and long-term monitoring.
Ectodermal dysplasia syndrome
Learn about Ectodermal Dysplasia (ED), including the classic triad of symptoms like missing teeth and reduced sweating. Understand your care and management.
Oculocutaneous albinism type 2
Learn about Oculocutaneous Albinism Type 2 (OCA2). Understand how this genetic condition affects the eyes and skin, life expectancy, and common misconceptions.
ATTRV30M amyloidosis
Recently diagnosed with ATTRv V30M Amyloidosis? Learn about the TTR protein mutation, early vs. late-onset symptoms, and modern stabilizing treatments.
Familial hypocalciuric hypercalcemia type 1
Learn about Familial Hypocalciuric Hypercalcemia Type 1 (FHH1). Understand why this benign genetic trait causes high blood calcium and rarely requires surgery.
Autosomal dominant optic atrophy
Learn about Autosomal Dominant Optic Atrophy (ADOA) in this comprehensive patient guide. Understand symptoms, OPA1 genetics, diagnosis, and new treatments.
Autosomal dominant optic atrophy, classic form
Newly diagnosed with Autosomal Dominant Optic Atrophy (ADOA)? Learn what this genetic mitochondrial condition means for your vision and how to navigate care.
Aplasia cutis congenita
Learn what to expect if your newborn is diagnosed with aplasia cutis congenita (ACC). Understand causes, wound care, warning signs, and long-term outlook.
Seckel syndrome
Learn what a Seckel syndrome diagnosis means for your child. Understand the causes of this rare primordial dwarfism and how to build the right care team.
Sjögren-Larsson syndrome
Learn the first steps after a Sjögren-Larsson Syndrome (SLS) diagnosis. Understand the classic triad of symptoms, the ALDH3A2 gene, and how to manage care.
Granulomatosis with polyangiitis
Learn what a Granulomatosis with polyangiitis (GPA) diagnosis means. Understand this rare vasculitis, its symptoms, and why it's now a manageable condition.
Williams syndrome
A comprehensive guide for parents of children diagnosed with Williams syndrome. Learn about genetics, heart health, anesthesia safety, and building a care team.
Aicardi-Goutières syndrome
Learn about Aicardi-Goutières syndrome (AGS), a rare genetic disorder often misdiagnosed as an infection. Understand causes, symptoms, and targeted treatments.
Oculocutaneous albinism
Learn the basics of Oculocutaneous Albinism (OCA). Understand how this genetic condition affects melanin, skin, hair, and vision, plus common myths explained.
Dermatomyositis
Learn what a dermatomyositis (DM) diagnosis means for you. Understand symptoms, treatments, autoantibodies, and how to partner with your rheumatologist.
Alpha-1-antitrypsin deficiency
Learn about Alpha-1 Antitrypsin Deficiency (AATD), an inherited condition affecting the lungs and liver. Understand causes, symptoms, and treatment options.
Angelman syndrome
A complete guide to understanding Angelman syndrome for parents. Learn about symptoms, UBE3A genetics, care teams, and emerging therapies for your child.
Hereditary thrombophilia due to congenital antithrombin deficiency
Understand Congenital Antithrombin Deficiency (AT III). Learn about blood clot risks, symptoms, treatments, and why heparin resistance matters for your care.
Autosomal dominant cerebellar ataxia
Learn about Autosomal Dominant Cerebellar Ataxia (ADCA), often called Spinocerebellar Ataxia (SCA). Understand symptoms, genetic causes, and treatments.
Multiple system atrophy
Learn about Multiple System Atrophy (MSA), a rare neurological disorder. Understand symptoms, subtypes (MSA-P and MSA-C), and how to build your care team.
Hypermobile Ehlers-Danlos Syndrome (hEDS)
Explore our complete guide to Hypermobile Ehlers-Danlos Syndrome (hEDS). Learn about symptoms, diagnostic criteria, the POTS and MCAS trifecta, and treatments.
Mast Cell Activation Syndrome (MCAS)
Learn the three strict consensus criteria for a Mast Cell Activation Syndrome (MCAS) diagnosis. Understand the tryptase rise test, symptom requirements, and more.
Post-Sepsis Syndrome
Learn about Post-Sepsis Syndrome (PSS). Understand the physical, cognitive, and psychological symptoms survivors face and what to expect during recovery.
Postural Orthostatic Tachycardia Syndrome (POTS)
Read our comprehensive guide to Postural Orthostatic Tachycardia Syndrome (POTS). Learn about symptoms, diagnosis, treatment options, and daily management.
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