Chigger Bite: Symptoms & Signs

Medically Reviewed on 10/23/2020

Chigger bites are caused by a mite belonging to the Trombiculidae family.

The most common symptom of a chigger bite is itching that can be severe. Other associated symptoms are flat or raised red bumps on the skin. The bumps may take on the appearance of a blister. Scratching can cause further skin injury, including redness and bleeding at the site.

Cause of chigger bites

Baby chiggers cause chigger bites. The tiny biting organisms are most commonly found in the environment in grassy fields, gardens, parks, forests, and moist areas around lakes or rivers. At the time of the bite, chiggers insert a feeding structure into the skin and inject enzymes that destroy host tissue. The chigger feeds on the dead or destroyed tissue. Chiggers do not burrow into the skin.

Other chigger bite symptoms and signs

  • Flat or Raised Red Bumps on the Skin
  • Severe Itching

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References
Jameson, J. Larry, et al. Harrison's Principles of Internal Medicine, 20th Ed. New York: McGraw-Hill Education, 2018.