Menu Healthy Lifestyle Diseases & Conditions First Aid Symptoms Tests & Procedures Videos Definitions FAQs Condition List Search Conditions Alphabetical All A B C D E F G H I J K L M N O P Q R S T U V W X Y Z AAbdominal aortic aneurysmAbsence seizureAcanthosis nigricansAchalasiaAchilles tendinitisAchilles tendon ruptureACL injuryAcneAcoustic neuromaAcromegalyActinic keratosisAcute coronary syndromeAcute flaccid myelitis (AFM)Acute kidney failureAcute liver failureAcute lymphocytic leukemiaAcute myelogenous leukemiaAcute sinusitisAddison's diseaseAdenomyosisAdjustment disordersAdrenal cancerAdrenoleukodystrophy Adult attention-deficit/hyperactivity disorder (ADHD)Adult Still's diseaseAge spots (liver spots)AgoraphobiaAirplane earAlbinismAlcohol intoleranceAlcohol poisoningAlcohol use disorderAlcoholic hepatitisAllergiesAlpha-gal syndromeAlzheimer's diseaseAmbiguous genitaliaAmeloblastomaAmenorrheaAmnesiaAmniotic fluid embolismAmpullary cancerAmyloidosisAmyotrophic lateral sclerosis (ALS)Anal cancerAnal fissureAnal itchingAnaphylaxisAnemiaAngelman syndromeAnginaAngiosarcomaAnhidrosisAnkylosing spondylitisAnorexia nervosaAnorgasmia in womenAnterior prolapse (cystocele)AnthraxAntibiotic-associated diarrheaAntiphospholipid syndromeAntisocial personality disorderAnxiety disordersAortic dissectionAortic valve diseaseAortic valve regurgitationAortic valve stenosisAphasiaAplastic anemiaAppendicitisARDSArteriosclerosis / atherosclerosisArteriovenous fistulaArteriovenous malformationArthritisAsbestosisAscariasisAspergillosisAsthmaAsthma attackAstigmatismAstrocytomaAtaxiaAtelectasisAthlete's footAtopic dermatitis (eczema)Atrial fibrillationAtrial septal defect (ASD)Atrial tachycardiaAtrioventricular canal defectAtrioventricular nodal reentry tachycardia (AVNRT)Attention-deficit/hyperactivity disorder (ADHD) in childrenAtypical depressionAtypical hyperplasia of the breastAutism spectrum disorderAutoimmune hepatitisAutoimmune pancreatitisAutonomic neuropathyAvascular necrosisBBaby acneBack painBacterial vaginosisBad breathBags under eyesBaker's cystBalance problemsBarrett's esophagusBartholin's cystBasal cell carcinomaBedbugsBedsores (pressure ulcers)Bed-wettingBee stingBehcet's diseaseBell's palsyBenign paroxysmal positional vertigo (BPPV)Benign peripheral nerve tumorBenign prostatic hyperplasia (BPH)Bicuspid aortic valveBile refluxBinge-eating disorderBipolar disorderBird flu (avian influenza)Black hairy tongueBladder cancerBladder exstrophyBladder stonesBlastocystis hominisBlepharitisBlocked tear ductBlood in urine (hematuria)Body dysmorphic disorderBody liceBoils and carbunclesBone cancerBone metastasisBone spursBorderline personality disorderBotulismBrachial plexus injuryBradycardiaBrain aneurysmBrain AVM (arteriovenous malformation)Brain metastasesBrain tumorBreast cancerBreast cystsBreast painBroken ankleBroken armBroken collarboneBroken footBroken handBroken heart syndromeBroken legBroken noseBroken ribsBroken toeBroken wristBronchiolitisBronchitisBrucellosisBrugada syndromeBruxism (teeth grinding)Buerger's diseaseBulimia nervosaBullous pemphigoidBundle branch blockBunionsBurning mouth syndromeBurnsBursitisCC. difficile infectionCancerCanker soreCarbon monoxide poisoningCarcinoid syndromeCarcinoid tumorsCarcinoma of unknown primaryCardiogenic shockCardiomyopathyCarotid artery diseaseCarpal tunnel syndromeCastleman diseaseCataractsCavernous malformationsCavities/tooth decayCeliac diseaseCelluliteCellulitisCentral sleep apneaCerebral palsyCervical cancerCervical dystoniaCervical spondylosisCervicitisChagas diseaseCharcot-Marie-Tooth diseaseChemo brainChest painChiari malformationChickenpoxChilblainsChild abuseChildhood apraxia of speechChildhood asthmaChildhood obesityChildhood schizophreniaChlamydia trachomatisCholangiocarcinoma (bile duct cancer)CholecystitisCholeraCholestasis of pregnancyChondrosarcomaChordomaChoroid plexus carcinomaChronic coughChronic daily headachesChronic exertional compartment syndromeChronic fatigue syndromeChronic granulomatous diseaseChronic hivesChronic kidney diseaseChronic lymphocytic leukemiaChronic myelogenous leukemiaChronic pelvic pain in womenChronic sinusitisChronic traumatic encephalopathyChurg-Strauss syndromeCirrhosisClaudicationCleft lip and cleft palateClubfootCluster headacheCoarctation of the aortaCold soreCold urticariaColicColon cancerColon polypsColor blindnessComaCommon coldCommon cold in babiesCommon wartsComplex regional pain syndromeComplicated griefCompulsive gamblingCompulsive sexual behaviorConcussionCongenital adrenal hyperplasiaCongenital heart defects in childrenCongenital heart disease in adultsCongenital mitral valve anomaliesCongenital myopathiesConjoined twinsConstipationConstipation in childrenContact dermatitisConvergence insufficiencyCOPDCorns and callusesCoronary artery diseaseCoronavirus disease 2019 (COVID-19)Corticobasal degenerationCostochondritisCough headachesCradle capCraniopharyngiomaCraniosynostosisCreutzfeldt-Jakob diseaseCrohn's diseaseCroupCryoglobulinemiaCryptosporidium infectionCushing syndromeCutaneous B-cell lymphomaCutaneous T-cell lymphomaCyclic vomiting syndromeCyclospora infectionCyclothymia (cyclothymic disorder)Cystic fibrosisCystitisCytomegalovirus (CMV) infectionDDandruffDe Quervain's tenosynovitisDeep vein thrombosis (DVT)DehydrationDelayed ejaculationDelayed sleep phaseDeliriumDementiaDengue feverDepersonalization-derealization disorderDepression (major depressive disorder)DermatitisDermatofibrosarcoma protuberansDermatographiaDermatomyositisDesmoid tumorsDeviated septumDiabetesDiabetes insipidusDiabetic comaDiabetic hyperosmolar syndromeDiabetic hypoglycemiaDiabetic ketoacidosisDiabetic nephropathyDiabetic neuropathyDiabetic retinopathyDiaper rashDiarrheaDiffuse idiopathic skeletal hyperostosis (DISH)DiGeorge syndrome (22q11.2 deletion syndrome)Dilated cardiomyopathyDiphtheriaDislocated elbowDislocated shoulderDislocationDissociative disordersDiverticulitisDizzinessDouble uterusDouble-outlet right ventricleDown syndromeDressler syndromeDrug addiction (substance use disorder)Drug allergyDry eyesDry macular degenerationDry mouthDry skinDry socketDuctal carcinoma in situ (DCIS)Dumping syndromeDupuytren's contractureDural arteriovenous fistulasDust mite allergyDwarfismDysarthriaDyshidrosisDyslexiaDysphagiaDystoniaEE. coliEar infection (middle ear)Earwax blockageEating disordersEbola virus and Marburg virusEbstein anomalyEctopic pregnancyEctropionEdemaEgg allergyEhlers-Danlos syndromeEhrlichiosis and anaplasmosisEisenmenger syndromeElevated blood pressureEmbryonal tumorsEmphysemaEncephalitisEncopresisEndocarditisEndometrial cancerEndometriosisEnd-stage renal diseaseEnlarged breasts in men (gynecomastia)Enlarged heartEnlarged liverEnlarged spleen (splenomegaly)EntropionEosinophilic esophagitisEpendymomaEpidermoid cystsEpidermolysis bullosaEpididymitisEpiglottitisEpilepsyEpithelioid sarcomaErectile dysfunctionEsophageal cancerEsophageal spasmsEsophageal varicesEsophagitisEssential thrombocythemiaEssential tremorEsthesioneuroblastomaEwing sarcomaExercise headachesExercise-induced asthmaExternal compression headachesEye floatersEye melanomaEyestrainFFactitious disorderFactor V LeidenFamilial adenomatous polyposisFamilial hypercholesterolemiaFamilial Mediterranean feverFarsightednessFebrile seizureFecal incontinenceFemale infertilityFemale sexual dysfunctionFetal alcohol syndromeFetal macrosomiaFeverFibroadenomaFibrocystic breastsFibromuscular dysplasiaFibromyalgiaFibrous dysplasiaFlatfeetFloor of the mouth cancerFolliculitisFood allergyFood poisoningFoot dropFrontal lobe seizuresFrontotemporal dementiaFrostbiteFrozen shoulderFuchs' dystrophyFunctional dyspepsiaFunctional neurologic disorders/conversion disorderGGalactorrheaGallbladder cancerGallstonesGanglion cystGangreneGas and gas painsGastritisGastroesophageal reflux disease (GERD)Gastrointestinal bleedingGastrointestinal stromal tumor (GIST)GastroparesisGaucher diseaseGender dysphoriaGeneralized anxiety disorderGenital herpesGenital wartsGeographic tongueGestational diabetesGiant cell arteritisGiardia infection (giardiasis)Gilbert's syndromeGingivitisGlaucomaGlioblastomaGliomaGlomerulonephritisGoiterGolfer's elbowGonorrheaGoutGrand mal seizureGranuloma annulareGranulomatosis with polyangiitisGraves' diseaseGreenstick fracturesGroup B strep diseaseGrowing painsGrowth plate fracturesGuillain-Barre syndromeHH1N1 flu (swine flu)Hair lossHairy cell leukemiaHammertoe and mallet toeHamstring injuryHand-foot-and-mouth diseaseHangoversHantavirus pulmonary syndromeHashimoto's diseaseHay feverHead liceHeadaches in childrenHearing lossHeart arrhythmiaHeart attackHeart diseaseHeart failureHeart murmursHeart palpitationsHeart valve diseaseHeartburnHeat exhaustionHeat rashHeatstrokeHelicobacter pylori (H. pylori) infectionHemangiomaHemifacial spasmHemochromatosisHemolytic uremic syndrome (HUS)HemophiliaHemorrhoidsHenoch-Schonlein purpuraHepatitis AHepatitis BHepatitis CHepatocellular carcinomaHepatopulmonary syndromeHereditary hemorrhagic telangiectasiaHerniated diskHiatal herniaHiccupsHidradenitis suppurativaHigh blood pressure (hypertension)High blood pressure in childrenHigh cholesterolHilar cholangiocarcinomaHip dysplasiaHip fractureHip labral tearHirschsprung's diseaseHirsutismHistoplasmosisHIV/AIDSHives and angioedemaHoarding disorderHodgkin's lymphoma (Hodgkin's disease)Horner syndromeHot flashesHPV infectionHunter syndromeHuntington's diseaseHurthle cell cancerHydroceleHydrocephalusHydronephrosisHypercalcemiaHypereosinophilic syndromeHyperglycemia in diabetesHyperhidrosisHyperoxaluria and oxalosisHyperparathyroidismHyperthyroidism (overactive thyroid)Hypertrophic cardiomyopathyHypoglycemiaHyponatremiaHypoparathyroidismHypopituitarismHypoplastic left heart syndromeHypospadiasHypothermiaHypothyroidism (underactive thyroid)IIce cream headachesIchthyosis vulgarisIdiopathic hypersomniaIgA nephropathy (Berger's disease)Illness anxiety disorderImmune thrombocytopenia (ITP)Impacted wisdom teethImpetigoIncompetent cervixIndigestionInfant jaundiceInfant refluxInfectious diseasesInfertilityInflammatory bowel disease (IBD)Inflammatory breast cancerInfluenza (flu)Ingrown hairIngrown toenailsInguinal herniaInsomniaIntermittent explosive disorderInterstitial cystitisInterstitial lung diseaseIntestinal ischemiaIntestinal obstructionIntracranial hematomaIntracranial venous malformationsIntussusceptionInvasive lobular carcinomaIritisIron deficiency anemiaIrritable bowel syndromeIschemic colitisItchy skin (pruritus)JJellyfish stingsJet lag disorderJock itchJuvenile fibromyalgiaJuvenile idiopathic arthritisKKaposi's sarcomaKawasaki diseaseKeratitisKeratoconusKeratosis pilarisKidney cancerKidney cystsKidney infectionKidney stonesKleptomaniaKlinefelter syndromeKlippel-Trenaunay syndromeKnee bursitisKnee painKrabbe diseaseKyphosisLLactose intoleranceLaryngitisLatex allergyLazy eye (amblyopia)Lead poisoningLeft ventricular hypertrophyLegg-Calve-Perthes diseaseLegionnaires' diseaseLeiomyosarcomaLeukemiaLeukoplakiaLewy body dementiaLiceLichen nitidusLichen planusLichen sclerosusLimited sclerodermaLip cancerLipomaLiposarcomaListeria infectionLiver cancerLiver diseaseLiver hemangiomaLobular carcinoma in situ (LCIS)Long QT syndromeLow blood pressure (hypotension)Low sex drive in womenLow sperm countLung cancerLupusLupus nephritisLyme diseaseLymphedemaLymphomaLynch syndromeMMalariaMale breast cancerMale hypogonadismMale infertilityMalignant hyperthermiaMalignant peripheral nerve sheath tumorsMammary duct ectasiaMarfan syndromeMastitisMCAD deficiencyMeaslesMedian arcuate ligament syndrome (MALS)Medication overuse headachesMedulloblastomaMelanomaMembranous nephropathyMeniere's diseaseMeningiomaMeningitisMenopauseMenorrhagia (heavy menstrual bleeding)Menstrual crampsMental illnessMeralgia parestheticaMerkel cell carcinomaMesenteric ischemiaMesenteric lymphadenitisMesotheliomaMetabolic syndromeMetachromatic leukodystrophyMetatarsalgiaMicrocephalyMicroscopic colitisMigraineMigraine with auraMild cognitive impairment (MCI)MiliaMilk allergyMiscarriageMitral valve diseaseMitral valve prolapseMitral valve regurgitationMitral valve stenosisMittelschmerzMixed connective tissue diseaseMolar pregnancyMold allergyMolesMolluscum contagiosumMonoclonal gammopathy of undetermined significance (MGUS)MononucleosisMorning sicknessMorpheaMorton's neuromaMosquito bitesMouth cancerMoyamoya diseaseMRSA infectionMultiple myelomaMultiple sclerosisMultiple system atrophy (MSA)Multisystem inflammatory syndrome in children (MIS-C) and COVID-19MumpsMuscle crampMuscle strainsMuscular dystrophyMyasthenia gravisMyelodysplastic syndromesMyelofibrosisMyocardial ischemiaMyocarditisMyoclonusMyofascial pain syndromeMyxofibrosarcomaNNaegleria infectionNail fungusNarcissistic personality disorderNarcolepsyNasal and paranasal tumorsNasal polypsNasopharyngeal carcinomaNearsightednessNeck painNephrogenic systemic fibrosisNephrotic syndromeNeuroblastomaNeurodermatitisNeuroendocrine tumorsNeurofibromaNeurofibromatosisNeuromyelitis opticaNickel allergyNicotine dependenceNiemann-PickNightmare disorderNonalcoholic fatty liver diseaseNonallergic rhinitisNon-Hodgkin's lymphomaNonmelanoma skin cancerNoonan syndromeNorovirus infectionOObesityObsessive-compulsive disorder (OCD)Obstructive sleep apneaOccupational asthmaOcular rosaceaOligodendrogliomaOppositional defiant disorder (ODD)Optic neuritisOral lichen planusOral thrushOrchitisOrthostatic hypotension (postural hypotension)Osgood-Schlatter diseaseOsteoarthritisOsteochondritis dissecansOsteomalaciaOsteomyelitisOsteoporosisOsteosarcomaOvarian cancerOvarian cystsOvarian hyperstimulation syndromeOveractive bladderPPaget's disease of bonePaget's disease of the breastPainful intercourse (dyspareunia)Pancreatic cancerPancreatic cystsPancreatic neuroendocrine tumorsPancreatitisPanic attacks and panic disorderParagangliomaParaneoplastic syndromes of the nervous systemParkinson's diseaseParotid tumorsPartial anomalous pulmonary venous returnParvovirus infectionPatellar tendinitisPatellofemoral pain syndromePatent ductus arteriosus (PDA)Patent foramen ovalePeanut allergyPectus carinatumPectus excavatumPediatric brain tumorsPediatric obstructive sleep apneaPediatric thrombocytopeniaPelvic inflammatory disease (PID)PemphigusPenicillin allergyPeptic ulcerPericardial effusionPericarditisPerimenopausePeriodontitisPeripheral artery disease (PAD)Peripheral nerve injuriesPeripheral nerve tumorsPeripheral neuropathyPeritonitisPersistent depressive disorder (dysthymia)Persistent post-concussive symptoms (Post-concussion syndrome)Personality disordersPet allergyPeyronie's diseasePhantom painPhenylketonuria (PKU)PheochromocytomaPilonidal cystPinched nervePineoblastomaPink eye (conjunctivitis)Pinworm infectionPituitary tumorsPityriasis roseaPlacenta accretaPlacenta previaPlacental abruptionPlaguePlantar fasciitisPlantar wartsPleurisyPneumoniaPneumonitisPneumothoraxPoison ivy rashPolioPolycystic kidney diseasePolycystic ovary syndrome (PCOS)Polycythemia veraPolyhydramniosPolymorphous light eruptionPolymyalgia rheumaticaPolymyositisPopliteal artery entrapment syndromePorphyriaPosterior cortical atrophyPosterior cruciate ligament injuryPosterior vaginal prolapse (rectocele)Postherpetic neuralgiaPostpartum depressionPostpartum preeclampsiaPostpartum thyroiditisPost-polio syndromePost-traumatic stress disorder (PTSD)Prader-Willi syndromePrecocious pubertyPrediabetesPreeclampsiaPremature birthPremature ejaculationPremature ventricular contractions (PVCs)Premenstrual syndrome (PMS)PresbyopiaPrescription drug abusePreterm laborPriapismPrimary aldosteronismPrimary biliary cholangitisPrimary immunodeficiencyPrimary lateral sclerosis (PLS)Primary ovarian insufficiencyPrimary progressive aphasiaPrimary sclerosing cholangitisProctitisProgeriaProgressive supranuclear palsyProlactinomaProstate cancerProstatitisPseudobulbar affectPseudocholinesterase deficiencyPseudogoutPseudomembranous colitisPseudotumor cerebriPsoriasisPsoriatic arthritisPubic lice (crabs)Pulmonary atresiaPulmonary atresia with intact ventricular septumPulmonary atresia with ventricular septum defectPulmonary edemaPulmonary embolismPulmonary fibrosisPulmonary hypertensionPulmonary valve stenosisPyloric stenosisPyoderma gangrenosumQQ feverRRabiesRadiation enteritisRadiation sicknessRamsay Hunt syndromeRaynaud's diseaseReactive arthritisReactive attachment disorderRectal cancerRectovaginal fistulaRecurrent breast cancerREM sleep behavior disorderRenal artery stenosisResidual limb painRespiratory syncytial virus (RSV)Restless legs syndromeRetinal detachmentRetinal diseasesRetinoblastomaRetractile testicleRetrograde ejaculationRett syndromeReye's syndromeRhabdomyosarcomaRheumatic feverRheumatoid arthritisRicketsRingworm (body)Ringworm (scalp)Rocky Mountain spotted feverRosaceaRoseolaRotator cuff injuryRotavirusRubellaRumination syndromeRuptured eardrum (perforated eardrum)Ruptured spleenSSacral dimpleSacroiliitisSalivary gland tumorsSalmonella infectionSarcoidosisSarcomaScabiesScarlet feverSchizoaffective disorderSchizoid personality disorderSchizophreniaSchizotypal personality disorderSchwannomaSciaticaSclerodermaSclerosing mesenteritisScoliosisScorpion stingScrotal massesSeasonal affective disorder (SAD)Sebaceous carcinomaSeborrheic dermatitisSeborrheic keratosisSecondary hypertensionSeizuresSelf-injury/cuttingSeparated shoulderSeparation anxiety disorderSepsisSeptic arthritisSerotonin syndromeSevere acute respiratory syndrome (SARS)Sex headachesSexually transmitted diseases (STDs)Shaken baby syndromeSheehan's syndromeShellfish allergyShigella infectionShin splintsShinglesShort bowel syndromeSick sinus syndromeSickle cell anemiaSinus headachesSjogren's syndromeSkin cancerSleep apneaSleep terrors (night terrors)Sleep-related eating disorderSleepwalkingSmall bowel cancerSmall bowel prolapse (enterocele)Small intestinal bacterial overgrowth (SIBO)Small vessel diseaseSmallpoxSnoringSocial anxiety disorder (social phobia)Soft palate cancerSoft tissue sarcomaSolitary fibrous tumorSolitary rectal ulcer syndromeSomatic symptom disorderSore throatSoy allergySpecific phobiasSpermatoceleSpider bitesSpina bifidaSpinal arteriovenous malformation (AVM)Spinal cord injurySpinal cord tumorSpinal headachesSpinal stenosisSpontaneous coronary artery dissection (SCAD)Sprained ankleSprainsSquamous cell carcinoma of the skinStage 4 prostate cancerStaph infectionsStevens-Johnson syndromeStickler syndromeStomach cancerStomach polypsStrep throatStress fracturesStress incontinenceStretch marksStrokeStutteringStySubarachnoid hemorrhageSubconjunctival hemorrhage (broken blood vessel in eye)Sudden cardiac arrestSudden infant death syndrome (SIDS)Suicide and suicidal thoughtsSun allergySunburnSupraventricular tachycardiaSweating and body odorSweet's syndromeSwimmer's earSwimmer's itchSwollen kneeSwollen lymph nodesSynovial sarcomaSyphilisSyringomyeliaSystemic mastocytosisTTachycardiaTakayasu's arteritisTapeworm infectionTay-Sachs diseaseTeen depressionTemporal lobe seizureTENTendinitisTennis elbowTension headacheTesticular cancerTesticular torsionTetanusTetralogy of FallotThalassemiaThoracic aortic aneurysmThoracic outlet syndromeThroat cancerThrombocytopenia (low platelet count)ThrombocytosisThrombophlebitisThumb arthritisThunderclap headachesThyroid cancerThyroid nodulesTinea versicolorTinnitusTMJ disordersToe walking in childrenTongue-tie (ankyloglossia)Tonsil cancerTonsillitisTooth abscessTorn meniscusTotal anomalous pulmonary venous returnTourette syndromeToxic hepatitisToxic shock syndromeToxoplasmosisTrachomaTransient global amnesiaTransient ischemic attack (TIA)Transposition of the great arteriesTransverse myelitisTraumatic brain injuryTraveler's diarrheaTrichinosisTrichomoniasisTrichotillomania (hair-pulling disorder)Tricuspid atresiaTricuspid valve regurgitationTrigeminal neuralgiaTrigger fingerTriple X syndromeTruncus arteriosusTuberculosisTuberous sclerosisTularemiaTurner syndromeType 1 diabetesType 1 diabetes in childrenType 2 diabetesType 2 diabetes in childrenTyphoid feverUUlcerative colitisUmbilical herniaUndescended testicleUndifferentiated pleomorphic sarcomaUreteral cancerUreteral obstructionUrethral strictureUrinary incontinenceUrinary tract infection (UTI)Urine colorUterine fibroidsUterine polypsUterine prolapseUveitisVVaginal agenesisVaginal atrophyVaginal cancerVaginitisValley feverVaricoceleVaricose veinsVascular dementiaVascular ringsVasculitisVasovagal syncopeVentricular fibrillationVentricular septal defect (VSD)Ventricular tachycardiaVertebral tumorVesicoureteral refluxViral gastroenteritis (stomach flu)Viral hemorrhagic feversVitamin deficiency anemiaVitiligoVocal cord paralysisVoice disordersVon Willebrand diseaseVulvar cancerVulvodyniaWWaldenstrom macroglobulinemiaWest Nile virusWet macular degenerationWheat allergyWhiplashWhipple's diseaseWhooping coughWilms' tumorWilson's diseaseWolff-Parkinson-White (WPW) syndromeWrinklesWrist painXX-linked agammaglobulinemiaYYeast infection (vaginal)Yellow feverYipsZZika virusZollinger-Ellison syndrome