MyLeukemiaTeam

How does leukemia affect your immune system?

Leukemia weakens your immune system by preventing your bone marrow from making healthy white blood cells that fight infections. Instead, your bone marrow produces abnormal leukemia cells that can't protect you from viruses, bacteria, or fungi.

This puts you in a state called Show Full Answer

How does leukemia affect your immune system?

Leukemia weakens your immune system by preventing your bone marrow from making healthy white blood cells that fight infections. Instead, your bone marrow produces abnormal leukemia cells that can't protect you from viruses, bacteria, or fungi.

This puts you in a state called immunodeficiency, where you're more likely to get sick. Infections may be more severe and last longer than they would in someone without leukemia.

Here's what happens in your body:

* Your abnormal white blood cells can't fight infections properly
* You may develop swollen lymph nodes as leukemia cells collect there and can't be filtered out
* Your lymphatic system struggles to move immune cells where they're needed
* You become more vulnerable to infections from viruses, bacteria, and fungi

Different types of leukemia affect your immune system in different ways. Most leukemias affect B cells, which make antibodies to fight infections. Some affect T cells, which activate other parts of your immune system. Myeloid leukemias (AML and CML) affect cells like neutrophils that are first responders to infections, making fungal infections more common.

Because of these effects, it's important to take extra precautions to protect yourself from infections while living with leukemia.

 AI-generated responses are not a substitute for medical advice. These services are not intended to diagnose, treat, or cure any condition or disease. Always ask your doctor about specific health concerns.

How Does Leukemia Affect the Immune System?