U.S. doctors online nowAsk doctors free
A 31-year-old member asked:

What is the difference between hypersensitivity and autoimmunity?

2 doctor answers5 doctors weighed in
Dr. Robert Ramirez
Allergy and Immunology 19 years experience
Very different: A hypersensitivity is generally what we call an allergic reaction. This is mostly to things you find in the environment, and most of the time is driven by an antibody called ige. An autoimmune disease is usually driven by igg antibody, and what is being attacked is something in the body that the immune system thinks is "foreign" and should be "dealt with" when it shouldn't be.
Dr. John Chiu
Allergy and Immunology 58 years experience
Yes: Hypersensitivity usually means that your immune system reacts to something the majority of people do not. The agent is from the outside world. Autoimmunity means that your immune system is attacking your body's own tissue.

Related questions

A 34-year-old member asked:
What is the difference between hypersensitivity pneumonitis and asthma?
2 doctor answers6 doctors weighed in
A 42-year-old member asked:
What is the difference between hypersensitivity pneumonitis and asthma attacks?
2 doctor answers5 doctors weighed in
A 34-year-old member asked:
What's the difference between hypersensitivity and auto-immune disease, in the terms of immunology?
1 doctor answer4 doctors weighed in
A 47-year-old member asked:
Anaphylaxis, allergy and hypersensitivity, what's the difference between these three?
1 doctor answer10 doctors weighed in
Last updated Sep 21, 2017
Connect with a U.S. board-certified doctor by text or video anytime, anywhere.
24/7 visits - just $39!
50% off with $15/month membership

Disclaimer:

Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.