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Health.Powered by Ada.Supporting better health outcomes and clinical excellence with intelligent technology.Download AdaMedical libraryGood information leads to better health choices.Medical Library is a great place to look for answers about your health. It’s full of easy-to-understand tips to help you stay well and learn more about conditions and symptoms.Created by our doctors and grounded in the latest research, it’s here to help you understand your health.Browse nowTake care of yourselfWhat does my headache mean?Let’s look at some of the most common types of headaches, which part of the head they affect, and what they might mean.Read moreSAD: How to beat the winter bluesDark winter days and bad weather can get to all of us. But for about 5% of the US population, seasonal affective disorder (SAD) makes getting through winter a huge challenge.Read moreWhy women get more migrainesIf you get migraines, you know all too well how disabling they can be. Around 1 in 7 people around the world are affected by migraines and females are 3 times more likely to get migraines than males.Read moreGet started todayDownload Ada --- Your Privacy ChoicesWe use technically required and functional cookies on our website in order to provide you with a user-friendly, secure, and effective website. On subpages with Ada’s symptom assessment or similar functionalities we also use, with your consent, third-party cookies and other tools for analytical and marketing purposes to assess the effectiveness of our marketing measures. For this, certain events of your use of the website will be shared with the respective providers in obfuscated form. Those events never include health or other sensitive data. By clicking ‘accept’, you consent to the use of all cookies and tools. You can specify, withdraw or adjust your consent at any time via the Cookie Settings in the footer of this website. This does not affect the legality of the processing of your data up to that point. Read our Cookie Policy and our Privacy Policy to learn more.Accept only mandatoryCustomize SettingsAccept allMedical LibraryThe right health information leads to the right health actions. This library is stocked with tips that can help you stay well and facts about medical conditions. Just like Ada, everything you’ll learn here is based on our doctors’ clinical experience and the latest research.Your personal health portalAccess our symptom assessment 24/7. Find a topic by its first letter:ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzAL AmyloidosisAbdominal PainAchilles TendonitisAcne VulgarisAcute AppendicitisAcute Aspiration of Oropharyngeal or Gastric ContentsAcute BronchitisAcute GastritisAcute HIV InfectionAcute Heart FailureAcute LaryngitisAcute Otitis MediaAcute PancreatitisAcute Panic AttackAcute PharyngitisAcute PyelonephritisAcute Stress DisorderAcute Varicella Zoster (Chickenpox)Adjustment DisorderAdult-onset Still's Disease (AOSD)Alcohol IntoxicationAlcohol WithdrawalAllergic ConjunctivitisAllergic RhinitisAlzheimer’s DiseaseAmyotrophic Lateral Sclerosis (ALS)Anal CancerAnal FissureAnaphylaxisAnemiaAntiviral for COVID-19: all you need to knowAortic DissectionAphthous Mouth UlcersAppendix painArthritisAsperger SyndromeAsthmaAsymptomatic COVID-19At-home Testosterone TestAtaxiaAtherosclerosisAtopic DermatitisAtrial fibrillation (AFib)Attention Deficit Hyperactivity Disorder (ADHD)AutismAvian influenza (bird flu)Baby EczemaBacterial ConjunctivitisBacterial GastroenteritisBacterial MeningitisBacterial ProstatitisBacterial SinusitisBacterial VaginosisBenign MoleBenign Paroxysmal Positional VertigoBenign Prostatic HyperplasiaBilirubinBiomarkers GuideBipolar DisorderBladder CancerBlood Work ResultsBorderline Personality DisorderBrain Stem StrokeBreast CancerBurnoutCOVID Arm: What To KnowCOVID-19 Fever RangeCOVID-19 GuideCOVID-19 Symptom: Back PainCOVID-19 Symptom: Blurry VisionCOVID-19 Symptom: Body AchesCOVID-19 Symptom: Brain FogCOVID-19 Symptom: Burning NoseCOVID-19 Symptom: Clogged EarsCOVID-19 Symptom: CostochondritisCOVID-19 Symptom: CoughCOVID-19 Symptom: DiarrheaCOVID-19 Symptom: Dry MouthCOVID-19 Symptom: Dry NoseCOVID-19 Symptom: Ear PainCOVID-19 Symptom: Eyes Pain and RednessCOVID-19 Symptom: FatigueCOVID-19 Symptom: HeadacheCOVID-19 Symptom: Joint PainCOVID-19 Symptom: Kidney PainCOVID-19 Symptom: Loss of Taste and SmellCOVID-19 Symptom: Metallic TasteCOVID-19 Symptom: NoseCOVID-19 Symptom: Nose BleedCOVID-19 Symptom: Pink EyeCOVID-19 Symptom: Rash in AdultsCOVID-19 Symptom: Runny NoseCOVID-19 Symptom: Shortness of BreathCOVID-19 Symptom: Sore ThroatCOVID-19 Symptom: Stiff NeckCOVID-19 Symptom: Stomach AcheCOVID-19 Symptom: TinnitusCOVID-19 Symptom: Tongue Sores and ChangesCOVID-19 Symptom: migraineCOVID-19 SymptomsCOVID-19 Symptoms and Effects on Male GenitalsCOVID-19 Symptoms: Delta variant in kidsCOVID-19 Symptoms: Deltacron Variant COVID-19 Symptoms: Doomsday COVID VariantCOVID-19 Symptoms: InsomniaCOVID-19 Symptoms: Lambda Variant COVID-19 Symptoms: leg pain COVID-19 Symptoms: post nasal dripCOVID-19 Toes SymptomsCOVID-19 Treatments and MedicationsCOVID-19 and AsthmaCOVID-19 and Blood TypeCOVID-19 and Breast CancerCOVID-19 and Bronchitis COVID-19 and COPDCOVID-19 and CancerCOVID-19 and ConstipationCOVID-19 and DiabetesCOVID-19 and HIV or AIDSCOVID-19 and Hair LossCOVID-19 and LupusCOVID-19 and ObesityCOVID-19 and PneumoniaCOVID-19 and Sinus InfectionCOVID-19 and Weight LossCOVID-19 and arthritisCOVID-19 and blood clotsCOVID-19 and depressionCOVID-19 and high blood pressureCOVID-19 and laryngitisCOVID-19 and low body tempCOVID-19 and myocarditisCOVID-19 and urinary tract infection (UTI)COVID-19 dizzinessCOVID-19 in 2020COVID-19 in 2023: is the pandemic over?COVID-19 in older peopleCOVID-19 rebound symptomsCOVID-19 symptom: chest painCOVID-19 symptom: heart palpitationsCOVID-19 symptom: night sweatsCOVID-19 symptom: rash in childrenCOVID-19 symptom: restless legs syndromeCOVID-19 symptoms vs. allergiesCOVID-19 symptoms: Omicron vs. Delta COVID-19 symptoms: tonsillitisCOVID-19 vs Cold SymptomsCOVID-19 vs. flu symptomsCOVID-19 vs. strep throat symptomsCOVID-19 without feverCOVID-19: Arcturus variantCOVID-19: BA.2.86 variant symptoms (Pirola)COVID-19: Delta Variant SymptomsCOVID-19: JN.1 Variant SymptomsCOVID-19: Loss of Appetite COVID-19: Lung Symptoms and DamageCOVID-19: Nausea and VomitingCOVID-19: New Variants in 2025COVID-19: Omicron variant symptomsCOVID-19: Smoking and NicotineCOVID-19: Vulnerable groups at risk of severe illnessCOVID-19: What to do if you test positiveCOVID-19: can COVID affect your period?COVID-19: incubation periodCOVID-19: recovery time COVID-19: swollen lymph nodesCandida Vulvovaginitis (vaginal thrush)Cardiovascular Disease GuideCardiovascular Disease Risk FactorsCarpal Tunnel Syndrome (CTS)CataractsCauses of MiscarriageCeliac DiseaseCentral sleep apneaCerebellar ataxiaCervical CancerCervicitisCharcot-Marie-Tooth diseaseChemotherapy Side-EffectsChest ColdChildhood Absence EpilepsyChildhood AsthmaChiragraChlamydia InfectionChlamydia TestCholecystitisCholeraCholesterol GuideChronic BronchitisChronic GastritisChronic Heart FailureChronic Idiopathic ConstipationChronic LaryngitisChronic PancreatitisChronic Pelvic PainChronic PharyngitisChronic Renal FailureChronic migrainesCluster Headaches (CHs)Cold Sores (Herpes Labialis)Colorectal CancerColostomy BagCommon ColdCommon WartsConcussion SyndromeCongenital HypothyroidismConjunctivitis (Pink Eye)Contact DermatitisContusions and BruisesConversion DisorderCopperCoronary Artery DiseaseCostochondritisCovid-19 and AnxietyCradle CapCrohn’s DiseaseCryptorchidismCushing’s SyndromeCutaneous BurnsCyclothymic DisorderCystic FibrosisCytomegalovirus (CMV) InfectionDementia With Lewy BodiesDengue FeverDental AbscessDepression in Childhood or AdolescenceDepressive EpisodeDevelopmental Dysplasia of the HipDiabetesDiabetes InsipidusDiabetes type 2Diaper RashDisseminated TuberculosisDiverticulitisDonovanosis (granuloma inguinale)Early Disseminated Lyme DiseaseEarly Localized Lyme DiseaseEbola Virus DiseaseEctopic PregnancyEndocarditisEndometrial CancerEndometrial PolypsEndometriosisEnlarged ProstateEpstein-Barr Virus (EBV)Erectile DysfunctionEsophageal CancerEssential HypertensionEssential TremorEstradiolFSH (Follicle-Stimulating Hormone)Fabry DiseaseFailure to ThriveFamilial HypercholesterolemiaFamilial Mediterranean Fever (FMF)Febrile SeizureFetal Alcohol Spectrum DisordersFibrocystic BreastsFibrodysplasia ossificans progressiva (FOP)FibromyalgiaFolate DeficiencyFood AllergyFoods to Avoid During PregnancyFoods to Eat During PregnancyForeign Body AspirationForeign Body IngestionFree T4 Blood TestFriedreich's AtaxiaFunctional DyspepsiaGallbladder CancerGallstones (Symptomatic Cholelithiasis)GastroenteritisGastroesophageal Reflux DiseaseGeneralized Anxiety DisorderGeneralized SeizureGenital HerpesGenital WartsGonorrhea InfectionGoutGraves’ DiseaseHDL CholesterolHIV TestHIV and AIDSHIV and dementiaHIV and tongue symptomsHIV symptom: swollen lymph nodesHIV symptoms in menHIV symptoms in womenHIV symptoms skin rash HIV symptoms: feverHIV symptoms: sore throatHIV transmission: how is HIV transmitted?HPV (Human papillomavirus)Hashimoto’s Thyroiditis HypothyroidismHay FeverHeadacheHemiplegic migraine HemoglobinHemoglobin A1cHemoglobin levelsHemophiliaHemorrhagic StrokeHemorrhoidsHerpanginaHerpes SimplexHerpes Zoster InfectionHerpes Zoster OphthalmicusHgb Blood TestHidradenitis suppurativa (HS)Hormones GuideHuman Herpesvirus (HHV)Hypertensive RetinopathyHyperthyroidismHypoglycemia (Unspecified)HypothermiaHypothyroidismIdiopathic nephrotic syndromeImpetigoInfantile Atopic DermatitisInfantile ColicInfective EndocarditisInfluenza (flu)Inguinal HerniaIron Deficiency (Anemia)Irritable Bowel SyndromeIschemic StrokeJuvenile Idiopathic ArthritisJuvenile Rheumatoid ArthritisKeratoconjunctivitis Sicca (Dry Eye Syndrome)Keyhole SurgeryLDL CholesterolLaryngeal CancerLate Lyme DiseaseLegionella InfectionLiver CirrhosisLoiasisLong COVID symptoms: long-term effects of COVIDLower Gastrointestinal HemorrhageLuteinizing hormone (LH)Lyme DiseaseMagnesiumMalariaMeasles (Rubeola)MelanomaMenopauseMenstrual DisordersMesotheliomaMicronutrients GuideMiddle Ear InfectionMigraineMigraine HeadacheMigraine with auraMinor Head TraumaMiscarriageMolar PregnancyMorning SicknessMpoxMultiple MyelomaMultiple SclerosisMumpsMuscle SorenessMuscle StrainMuscle and Joint PainMusculoskeletal Lower Back PainMusculoskeletal PainMyasthenia GravisMyocardial InfarctionMyocarditisNappy RashNecrotizing Periodontal DiseaseNeonatal JaundiceNephritic SyndromeNephrolithiasis (Kidney Stones)Nephrotic SyndromeNon-Allergic RhinitisNon-Small Cell Lung CancerNonbacterial ProstatitisObsessive Compulsive DisorderObstructive sleep apneaOcular migraineOnychomycosis (Fungal Nail Infection)Open Angle GlaucomaOropharyngeal CancerOsteomalaciaOsteoporosisOtitis ExternaOvarian CancerPancreatic CancerParkinson’s DiseasePediatric Acute Otitis MediaPediatric Pneumonia (babies and children)Pediatric Urinary Tract InfectionPediatric Viral GastroenteritisPelvic inflammatory disease (PID)Peptic Ulcer DiseasePericardial EffusionPericarditis (Inflammation of the Heart Membrane)Pericarditis and COVID-19PerimenopausePeripheral Vascular DiseasePertussisPlantar WartsPlaque psoriasisPneumoniaPneumothoraxPodagraPoliovirus InfectionPolycystic Ovary SyndromePolymyalgia RheumaticaPost Traumatic Stress Disorder (PTSD)Post-Concussion Syndrome (PCS)Post-Streptococcal GlomerulonephritisPrecocious pubertyPreeclampsiaPregnancyPremature LaborPremenstrual Dysphoric Disorder (PMDD)Premenstrual syndrome (PMS)Preparing for a ColonoscopyPressure UlcerProgesteroneProlactin HormoneProstate CancerProstatectomy (Prostate Surgery)PsoriasisPulmonary EmbolismReactive ArthritisRecurrent Stomach DiscomfortRepetitive Strain Injury (RSI)Restless Legs Syndrome (RLS)Rheumatic FeverRheumatoid ArthritisRicketsRosaceaRoseola InfantumRubellaSHGB (Sex hormone binding globulin)ScabiesSchizophreniaSchnitzler syndromeSeasonal Affective DisorderSecondary SyphilisSeleniumSepsisSeptic ArthritisSexually Transmitted Diseases (STD): Sexual Health GuideSickle Cell DiseaseSigns of AutismSigns of DepressionSigns of Ear InfectionSigns of HemorrhoidsSigns of HerpesSigns of Kidney ProblemsSigns of MiscarriageSigns of Panic AttackSigns of Postpartum DepressionSigns of Shingles: Herpes ZosterSigns of StrokeSigns of a ConcussionSigns of burnoutSleep apneaSmall Cell Lung CancerSmoke InhalationSprainsStomach CancerSubarachnoid HemorrhageSubluxation and Dislocation of the HipSubluxation or Dislocation of the Radial HeadSyphilis InfectionSyphilis TestSystemic Lupus ErythematosusTPO AntibodiesTendonitisTension HeadacheTesticular CancerTesticular TorsionTestosteroneTetanusThalassemiaThyroid GuideThyroid Stimulating Hormone TSHThyroiditisThyroxine T4Tietze SyndromeTonsillitisTransient Ischemic Attack (TIA)Trichomonas VulvovaginitisTrichomoniasis TestTrigeminal NeuralgiaTriglyceridesTriiodothyronine T3TuberculosisTyphoid FeverUlcerative Colitis (UC)Unstable Angina PectorisUpper Gastrointestinal HemorrhageUrinary Incontinence (UI)Urinary Tract Infection (UTI)UveitisVMS: vasomotor symptoms (hot flashes)Varicella Zoster VirusVestibular migraine Viral ConjunctivitisViral MeningitisViral Sinusitis (Sinus Infection)Viral gastroenteritis (stomach flu)Vitamin B12Vitamin B12 DeficiencyVitamin DVitamin D DeficiencyVitamin Deficiency TestVitamin EVitamin K DeficiencyWhite Blood Cell CountZincGet started with Ada todayDownload Ada --- Your Privacy ChoicesWe use technically required and functional cookies on our website in order to provide you with a user-friendly, secure, and effective website. On subpages with Ada’s symptom assessment or similar functionalities we also use, with your consent, third-party cookies and other tools for analytical and marketing purposes to assess the effectiveness of our marketing measures. For this, certain events of your use of the website will be shared with the respective providers in obfuscated form. Those events never include health or other sensitive data. By clicking ‘accept’, you consent to the use of all cookies and tools. You can specify, withdraw or adjust your consent at any time via the Cookie Settings in the footer of this website. This does not affect the legality of the processing of your data up to that point. Read our Cookie Policy and our Privacy Policy to learn more.Accept only mandatoryCustomize SettingsAccept allHow can we help you?FAQsCan Ada replace my doctor?How do I edit my health profile in Ada?How do I export my assessment?How do I verify my account via email?Is my personal data shared with third parties?You don't have any ads in the app. How do you make money?Helpful topicsManaging my AccountMy data Privacy and SecurityUsing The Ada AppAda as a CompanySigning Up & Getting StartedStill need help?Contact support --- Your Privacy ChoicesWe use technically required and functional cookies on our website in order to provide you with a user-friendly, secure, and effective website. On subpages with Ada’s symptom assessment or similar functionalities we also use, with your consent, third-party cookies and other tools for analytical and marketing purposes to assess the effectiveness of our marketing measures. For this, certain events of your use of the website will be shared with the respective providers in obfuscated form. Those events never include health or other sensitive data. By clicking ‘accept’, you consent to the use of all cookies and tools. You can specify, withdraw or adjust your consent at any time via the Cookie Settings in the footer of this website. This does not affect the legality of the processing of your data up to that point. Read our Cookie Policy and our Privacy Policy to learn more.Accept only mandatoryCustomize SettingsAccept allYour portal to a symptom checker.Let Ada connect you to a symptom checker 24/7. The app is connected to the core system which combines medical knowledge with intelligent technology.Ada App gives you access to:Symptom checkerWith our free symptom checker, built on AI and clinical evidence.AccurateClinical studies show Ada is the most accurate symptom checker app.ConfidentialWe protect your data in accordance with the highest data protection standards. Your data. Your decisions.TrustedAda is one of the most popular symptom checker apps. Rated 4.75/5 on Android and 4.8/5 on iOS.Award-winning technology15 millionusers35 millionsymptom assessments completed350,0005-star ratings5product languages50in-house medical expertsFor better healthI was skeptical while downloading it, but I answered Ada's questions honestly, and was given a rather accurate assessment which I took to my specialist, and we're now treating a condition that can be monitored easily.These are unaltered publicly available third-party statements and not claims from Ada.For better healthVery friendly and easy to use, and turns out really accurate when you get a professional diagnosis later on. I really like how it takes to account a variety of factors when asking about symptoms. Don't expect it to replace professional medical diagnosis tho! This app basically guides me to realize when it's time to see a doctor.These are unaltered publicly available third-party statements and not claims from Ada.For better healthWell I have had a very rare disease since birth so I decided to see if it could guess it and it got it right! I was very surprised, it said only 9 out of 10,000 people get it and it still guessed it. I recommend this app very much.These are unaltered publicly available third-party statements and not claims from Ada.For better healthI had a really bad ear infection that lasted a while so I put my symptoms in on this app. It asked me a lot of questions and told me that my symptoms could be a busted eardrum. I didn’t believe it at first. I went to a doctor later that month and they told me that my right eardrum was busted.These are unaltered publicly available third-party statements and not claims from Ada.Get started todayDownload Ada