This list includes 6 Diseases that start with Q, from “Q fever” to “Quinsy (peritonsillar abscess)”. It covers infectious and inflammatory conditions and helps with quick clinical lookup, study, and patient education.
Diseases that start with Q are medically recognized conditions whose names begin with the letter Q. A notable example is Q fever — its ‘Q’ originally stood for “query” when investigators could not identify the cause.
Below you’ll find the table with Disease, Symptoms, Causes, Treatments & Referral, and Sources.
Disease: Names of the condition as commonly used, so you can locate the disorder quickly and unambiguously.
Symptoms: Short lists of the key signs and symptoms to help you recognize how the condition typically presents.
Causes: Primary cause and main risk factors summarized so you understand likely origins at a glance.
Treatments & Referral: Typical first-line treatments are listed and you are guided when specialist referral is usually needed.
Sources: Includes clinician-reviewed notes, links, and index references so you can follow up on original guidance.
Diseases that start with Q
| Name | ICD code(s) | Key symptoms | Main causes / risk factors |
|---|---|---|---|
| Q fever | A78 | Fever, severe headache, cough, fatigue | Coxiella burnetii infection from inhaling contaminated aerosols; livestock contact |
| Q fever endocarditis | A78, I33.9 | Prolonged fever, weight loss, night sweats, heart murmur | Chronic Coxiella burnetii infection, preexisting valvular heart disease |
| Quinsy (peritonsillar abscess) | J36 | Severe sore throat, fever, muffled voice, difficulty opening mouth | Complication of tonsillitis, streptococcal infection, poor oral hygiene |
| Quadriplegia (tetraplegia) | G82.5 | Paralysis of all four limbs, loss of sensation, possible breathing weakness | High cervical spinal cord injury, severe neurological disease |
| Quincke’s edema (angioedema) | T78.3 | Sudden facial/lip/tongue swelling, possible hives, breathing difficulty | Allergic reactions, ACE inhibitors, hereditary complement disorders |
| Quartan malaria | B52 | Fever every 72 hours, chills, sweating, malaise | Plasmodium malariae infection transmitted by Anopheles mosquitoes |