Wealthy Wellness
Why Do Blood Vessels Swell During Infection?
Blood vessels can swell as part of the body’s natural defense against infections.
When harmful microbes enter the body, the immune system triggers inflammation, causing blood vessels to widen and become more permeable.
This increased blood flow allows immune cells, oxygen, and nutrients to reach the affected area more quickly.
Swelling also helps immune cells move out of the bloodstream and into surrounding tissues where they are needed.
Although it can cause discomfort, this response plays an important role in protecting the body and promoting healing.
Source: The Brain Maze
