Morgellons Disease: Symptoms & Signs

Medically Reviewed on 4/27/2021

Morgellons disease is an uncommon delusional disorder that leads to the belief that one has parasites or foreign material moving in, or coming out of, the skin. The condition is most common in Caucasian women between the ages of 35 and 50, and an association with development of hypothyroidism has been described in those with the condition.

Signs and symptoms of Morgellons disease include complaints of

  • skin itching,
  • burning, or
  • feeling as if something is crawling beneath the skin.

They also often describe seeing what appears to be fibers, threads, hair, or fuzz coming out of lesions on their skin. Scratching may result in skin rashes or sores. Other associated symptoms can include

Cause of Morgellons disease

The cause of Morgellons disease is unknown.

Other morgellons disease symptoms and signs

  • Burning Sensation on the Skin
  • Depressed Mood
  • Difficulty Concentrating
  • Fatigue
  • Feeling as if Something Is Crawling Beneath the Skin
  • Short-Term Memory Loss
  • Skin Itching


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