Why Do Chigger Bites Itch So Much?
Published: Jan 09, 2024
The intense itching from chigger bites is more than just an annoyance. Discover the real reason behind this irritating sensation.
Contents
The Role of Enzymes
When chiggers bite, they inject digestive enzymes into the skin. These enzymes liquefy skin cells, creating an opening called a stylostome. This process is what causes the intense itching.
Skin's Reaction
The body's response to chigger bites includes inflammation and irritation. This reaction is a result of the body's immune system trying to heal the damage caused by the enzymes.

Why It Itches So Much
The enzymes and the feeding process stimulate nerve endings in the skin. This stimulation is what makes the itching so severe and bothersome.
Frequently Asked Questions
Digestive enzymes from the mites cause the itch.
The skin becomes inflamed and irritated.
The bites themselves are not painful, just itchy.
It's a tube-like opening created by chigger enzymes.
The Bottom Line
Itching from chigger bites is a reaction to enzymes, not the bite itself.
References
- Jones JG. Chiggers. Am Fam Physician 1987; 36:149.
- Shatrov AB. Stylostome formation in trombiculid mites (Acariformes: Trombiculidae). Exp Appl Acarol 2009; 49:261.
This article has been reviewed for accuracy by one of the licensed medical doctors working for Doctronic. Always discuss health information with your healthcare provider.
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