Navigation Links
For Some, Bugs Crawling on Skin Is a Delusion
Date:5/16/2011

By Randy Dotinga
HealthDay Reporter

MONDAY, May 16 (HealthDay News) -- Dermatologists sometimes see patients who insist their skin is infested by parasites despite clinical evidence to the contrary.

Now, a new study suggests that a common diagnosis -- it's all in the patient's head -- is often right on target.

Researchers tested the skin of more than 100 patients convinced that bugs, worms or germs had invaded their skin. In all but one case, the skin tests turned up no sign of possible infestation, and the researchers concluded the patients suffered from a psychological condition called "delusional parasitosis."

"We're not discovering that we missed an organism," said study co-author Dr. Mark D. Davis, a professor of dermatology at Mayo Clinic in Rochester, Minn. "If a clinician suspects that a patient has delusions, we can predict that a skin biopsy won't change that clinical impression."

Davis said a typical dermatologist at a teaching hospital could see a couple of cases a year of delusional infestation in which patients wrongly believe their skin is infested.

"The patients become desperate because they feel their skin is infested with things like insects, bugs and worms. Sometimes they feel there are fibers crawling out of their skin or bits of triangles coming out of their skin," Davis said. "They become very preoccupied with it and try to extract it with forceps and knives, and they go to lots of doctors to try to get a diagnosis so they can get an antibiotic to get rid of it.

"We see many patients whose lives are ruined," he added.

Some doctors prescribe anti-psychotic drugs to the patients, said Dr. Steven R. Feldman, a professor of dermatology at Wake Forest University School of Medicine, who believes a neurotransmitter imbalance in the brain causes the condition.

But, "it can be difficult to get patients to take the medication since they don't believe the problem is in their head," Feldman said.

For this study, published online May 16 in the Archives of Dermatology, researchers tested skin samples from 108 people -- 75 percent women -- who visited the Mayo Clinic between 2001 and 2007 and complained of animate and inanimate invaders. Patients had suffered for an average of 2.3 years.

Seventy-nine percent of the patients complained of bug infestations. Others were sure they had worms, eggs, fibers or other intruders, such as "specks," rotting wood fungus, glass and car oil.

After taking skin biopsies and/or examining skin samples provided by the patients, the researchers found that the majority of the skin samples showed signs of dermatitis and other skin conditions, such as ulceration or inflammation. Only one skin sample revealed an insect with infestation potential -- a pubic louse.

This suggests that skin inflammation and the accompanying discomfort might be an underlying pathological condition triggering the delusional symptoms, the authors said.

More information

For more on delusional parasitosis, visit the University of California at Davis.

SOURCES: Steven R. Feldman, M.D., Ph.D., professor, dermatology, Wake Forest University School of Medicine, Winston-Salem, N.C.; Mark D. Davis, M.D., professor, dermatology, Mayo Clinic, Rochester, Minn.; May 16, 2011, Archives of Dermatology, online


'/>"/>
Copyright©2010 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. For Some, Care May Be Withdrawn Too Soon After Cardiac Arrest
2. Hospital Care Deadly for Some, U.S. Study Finds
3. Benefits of Weight-Loss Surgery May Outweigh Risks for Some, Experts Say
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
For Some, Bugs Crawling on Skin Is a Delusion
(Date:12/8/2016)... ... 08, 2016 , ... The Florida Hospital Tampa Wound Healing ... Society (UHMS), the leading authority in hyperbaric medicine. This accreditation identifies the Institute ... and facilities have earned this distinction. This is the second time the Florida ...
(Date:12/8/2016)... JENNERSVILLE, Pa. (PRWEB) , ... December 08, 2016 ... ... Penn Medicine Southern Chester County, a Property owned by an affiliate of Seavest, ... 72,000 square foot Penn Medicine Southern Chester County ambulatory care center (ACC) was ...
(Date:12/8/2016)... ... December 08, 2016 , ... David J. Dykeman ... law firm Greenberg Traurig, LLP, will speak at DeviceTalks West, Dec. 12, 2016, at ... DeviceTalks series, and attorneys from the firm’s global Life Sciences & Medical Technology Group ...
(Date:12/8/2016)... ... December 08, 2016 , ... ... development solutions for drugs, biologics and consumer health products, today announced that it ... up in 2006 as a non-profit organization to unite pharmaceutical and healthcare companies ...
(Date:12/8/2016)... City, Ga (PRWEB) , ... December 08, 2016 ... ... moving as soon after surgery as possible. With this in mind, SIGVARIS has ... thrombosis (DVT or blood clot) during bed rest and provide the benefits of ...
Breaking Medicine News(10 mins):
(Date:12/9/2016)... aTyr Pharma, Inc. (Nasdaq: LIFE ), a biotherapeutics company ... severe, rare diseases, today announced that senior management will participate in ... Conference at the InterContinental Barclay Hotel in New York ... ET. About aTyr Pharma ... aTyr Pharma is engaged in the ...
(Date:12/9/2016)... , Dec. 9, 2016  Forge Therapeutics, Inc. ... (Frankfurt Stock Exchange: EVT, TecDAX, ISIN: DE0005664809) to ... for the treatment of bacterial infections including those ... recognized as an attractive antibacterial target for more ... of suitable chemical starting points has hampered its ...
(Date:12/8/2016)... -- The global biosurgery market is expected to grow at ... 2016 to 2021. The market is poised to reach ... in 2016. The market is primarily driven by rising ... and spinal problems, increasing clearance of biosurgery products by ... management. In this report, the biosurgery market ...
Breaking Medicine Technology: