How Cancer Affects the Body’s Immune System?

 The immune system plays a vital role in protecting the body from infections, diseases, and abnormal cell growth. It is designed to identify and destroy harmful cells, including cancer cells. However, cancer can weaken the immune system and interfere with its normal functioning, making it harder for the body to fight diseases effectively.

Understanding the Connection Between Cancer and the Immune System

The immune system consists of white blood cells, lymph nodes, bone marrow, and other organs that work together to defend the body. In healthy individuals, immune cells can recognize and eliminate abnormal cells before they develop into cancer. However, cancer cells can develop ways to evade detection and continue growing.

How Cancer Weakens the Immune System

1. Damage to Bone Marrow

Certain cancers, especially blood cancers such as leukemia, lymphoma, and multiple myeloma, directly affect the bone marrow. Since bone marrow produces white blood cells, cancer can reduce the body's ability to produce infection-fighting cells.

2. Reduced White Blood Cell Production

Cancer may decrease the number of healthy white blood cells, making patients more vulnerable to infections. A weakened immune system may struggle to fight even common illnesses.

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