# Demodex studies

**URL:** <https://oozingyellowcrusts.com/t/demodex-studies/37>\
**Category:** Studies\
**Created:** [September 12, 2015, 6:33pm UTC](https://oozingyellowcrusts.com/t/demodex-studies/37 "2015-09-12T18:33:48Z")\
**Posts on this page:** 1\
**Showing post:** 12

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**Author:** ![Tso](https://oozingyellowcrusts.com/letter_avatar_proxy/v4/letter/t/e8c25b/32.png) [@Tso](https://oozingyellowcrusts.com/u/Tso)\
**Post date:** [November 16, 2015, 10:47pm UTC](https://oozingyellowcrusts.com/t/demodex-studies/37/12 "2015-11-16T22:47:23Z")

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> **[Human demodicosis: revisit and a proposed classification - PubMed](https://pubmed.ncbi.nlm.nih.gov/24471456/)**
>
> Human Demodex mites (Demodex folliculorum and Demodex brevis) hold a high rank in the evolutionary and phylogenetic hierarchy of the skin microbiome, although in most people their presence is of no consequence. While human demodicosis is a skin...

**Spinulate demodicosis.** : Primary human demodicosis depicting discrete, fine, whitish, partly yellowish, keratotic, spiky scaly changes involving sebaceous hair follicles in the background of faint erythema:

 ![](https://oozingyellowcrusts.com/uploads/default/original/1X/f6d000952dfb8d5844c7dd7acb0c5fe4e58a5599.jpg)

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**Papulopustular demodicosis.** (a) Primary human demodicosis characterized by a typical protracting course involving the forehead of a 46-year-old man with agminated follicle-bound lesions in an irregular shape. (b) Microscopic examination of skin scrapings revealed more than 5 mites per cm2:

 ![](https://oozingyellowcrusts.com/uploads/default/original/1X/2fabfd2504e6c6ac701da92522a6b52028de9ba0.jpg)

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**Papulopustular demodicosis.** Primary human demodicosis displaying disseminate involvement of the face of a 64-year-old woman with mild keratotic inflammatory papules of different sizes in an asymmetric distribution:

 ![](https://oozingyellowcrusts.com/uploads/default/original/1X/b2477d1d4b248298988b6a7b89c0133b6de54675.jpg)

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**Nodulocystic demodicosis.** Primary human demodicosis with intense inflammatory reaction including pus and  
suppurative succulent changes:  
 ![](https://oozingyellowcrusts.com/uploads/default/original/1X/f24b2f426baef0f89b2e492107db8d70513efcaf.jpg)

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**Crusted demodicosis of the face.** Primary human demodicosis showing multiple partly confluent papulopustules with thick yellowish crusts:

 ![](https://oozingyellowcrusts.com/uploads/default/original/1X/abbda187a3f5a7fcca14431b04528a9438c608e7.jpg)

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