This article covers all the diagnoses that have occured more than once on House M.D.
Cancer (21 times)
- Lucy Palmeiro - The Socratic Method - Liver Cancer - Treated
- Naomi Randolph - Babies & Bathwater - Small-cell carcinoma - Terminal
- Volleyball Player - Three Stories - Bone Cancer - Treated
- Cindy Kramer - Acceptance - Small-cell carcinoma - Terminal
- Sebastian Charles - TB or Not TB - Nesidioblastoma - Treated
- Alex - Skin Deep - Testicular Cancer - Treated
- Kara Mason - Forever - Stomach Cancer secondary to Celiac disease - Patient refused treatment
- George - Que Será Será - Small-cell carcinoma - Terminal
- Abigail Ralphean - Merry Little Christmas - Langerhans cell histiocytosis - Treated
- Derek Hoyt - Words and Deeds - Spinal Meningioma
- Maggie - It's a Wonderful Lie - Breast Cancer - Treated
- Apple - Not Cancer - Stem cell Cancer - Treated
- Sophia Isabel Velez - Acute promyelocytic leukimia -Treated
- Morgan West - Here Kitty - Appendix Cancer - Treated
- Eugene Schwartz - Both Sides Now - Pancreatic Cancer - Unknown
- Tucker - Wilson - Acute lymphoblastic leukimia - Treated
- Daryl - Moving the Chains - Melanoma - Treated
- Abbey's baby and Abbey - Unplanned Parenthood - Melanoma and Small-cell carcinoma - One treated, one fatal
- Kendall Pearson - Last Temptation - Lymphosarcoma - Treated
- Cyrus Harry - Changes - Teratoma - Treated
- Iris - Dead & Buried - Choriocarcinoma - Treated
- Bill Koppelman - Nobody's Fault - Lymph node tumor - Treated
- Emily Lawson - The C Word - Atrial myxoma - Treated
The Mistake is not included because the cancer was secondary to the treatment for the underlying condition.
Heavy Metal Poisoning (5 times)
- Hank Wiggen - Sports Medicine - Cadmium - Treated
- Bob Palko - Clueless - Gold - Treated, but with serious complications
- John - Whatever It Takes - Selenium - Treated
- Nozick - The Itch - Lead - Treated
- Arlene Cuddy - Family Practice - Cobalt - Treated
Porphyria (4 times)
- Mark Warner - Honeymoon - Acute Intermittent Porphyria - Treated
- Alice Hartman - Finding Judas - Erythropoietic Protoporphyria - Treated
- Emmy - Let Them Eat Cake - Hereditary coproporphyria - Treated
- Driscoll and Landon Parks - Carrot or Stick - Variegate porphyria - Treated
Sepsis (3 times)
- Kayla - The Mistake - Complicated by Gastric ulcer - Terminal
- Lupe - House Training - Complication of Staphylococcus - Terminal
- Penelope - Under My Skin - Complication of Gonorrhea - Treated
Hemochromatosis (3 times)
- Leona - Who's Your Daddy? - Complicated by Zygomycosis - Treated
- Nate - The Jerk - Treated
- Jordan - Known Unknowns - Complicated by vibrio vulnificus - Treated
Severe allergic reaction (3 times)
- Sister Mary Augustine - Damned If You Do - Copper - Treated
- Evan Greer - Living The Dream - Quinine - Treated
- Sidney Merrick - Baggage - Tattoo ink - Treated
Vitamin K Deficiency (2 times)
- Lucy Palmeiro - The Socratic Method - Treated
- Kara Mason - Forever - Secondary to Celiac disease - Patient refused treatment
Arterio-venous malformation (3 times)
- John Henry Giles - DNR - Treated
- John Kelley - Top Secret - Secondary to Hereditary hemorrhagic telangiectasia - Treated
- Addie - Resignation - Secondary to a Suicide attempt - Treated
Leprosy (2 times)
- Gabe Reillich and Jeffrey Reilich - Cursed - Treated
- Lou - Dying Changes Everything - Lepramatous Leprosy - Treated
Thrombotic thrombocytopenic purpura (2 times)
- Mary Carroll - Kids - Complication of pregnancy - Treated
- James Sidas - Ignorance is Bliss - Complication of drug abuse - Treated
Strongyloides (2 times)
- Thomas Stark - 97 Seconds - Terminal
- Hank Hardwick - Teamwork - Secondary to Crohn's disease - Treated
Wilson's disease (2 times)
- Lucy Palmeiro - The Socratic Method - Treated
- Valerie - Remorse - Treated, but patient will require liver transplant
Celiac Disease (2 times)
- Kara Mason - Forever - Complicated by stomach cancer - Refused treatment
- Joe Reese - Man of the House - Secondary to polyglandular autoimmune syndrome type III - Treated
Myasthenia Gravas (2 times)
- Jeff Forster - Spin - Secondary to Thymoma - Treated
- Joe Reese - Man of the House - Secondary to Polyglandular autoimmune syndrome type III - Treated
Patent Ductus Arteriosus (2 times)
- Sarah - Big Baby - Treated
- Lue - Body and Soul - Treated