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Types of inflammatory reactions

There are two types of inflammatory reaction:

  • Acute inflammation, which is non-specific, sets in very quickly. The main players are the cells capable of destroying the aggressor. Once the aggression is controlled, the tissue is repaired and the inflammation ends;

  • Chronic inflammation occurs when inflammation is uncontrolled and persists over time. In this case, the defense mechanisms appeal to the immune mechanisms which are more specific. That is, the inflammatory reaction becomes unfavorable and must be controlled with medication.


When the inflammation is local, local manifestations can be observed, that is to say at the site of the attack. In this case, the skin is red, hot, painful and swollen. These symptoms are explained by a greater blood flow generated at the site of inflammation due to the dilation of the vessels (under the action of chemical mediators). Pain is caused by pressure exerted on nerve endings.

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