Skin Disorders: Eczema and Acne


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Eczema is a common skin disorder that presents as a red, flaky rash. (credit: “Jambula”/Wikimedia Commons)
Source: OpenStax Anatomy and Physiology

Skin Disorders (OpenStax Anatomy and Physiology)

Eczema is an allergic reaction that manifests as dry, itchy patches of skin that resemble rashes. It may be accompanied by swelling of the skin, flaking, and in severe cases, bleeding. Many who suffer from eczema have antibodies against dust mites in their blood, but the link between eczema and allergy to dust mites has not been proven. Symptoms are usually managed with moisturizers, corticosteroid creams, and immunosuppressants.

Acne. Image Source: http://stanford.edu/

Acne is a skin disturbance that typically occurs on areas of the skin that are rich in sebaceous glands (face and back). It is most common along with the onset of puberty due to associated hormonal changes, but can also occur in infants and continue into adulthood. Hormones, such as androgens, stimulate the release of sebum. An overproduction and accumulation of sebum along with keratin can block hair follicles. This plug is initially white. The sebum, when oxidized by exposure to air, turns black. Acne results from infection by acne-causing bacteria (Propionibacterium and Staphylococcus), which can lead to redness and potential scarring due to the natural wound healing process.

Related Research: High Prevalence of Skin Disorders among HTLV-1 Infected Individuals Independent of Clinical Status

Did you know that certain cosmetic habits and skin care products can cause skin disorders.[1]

Source:

Betts, J. G., Young, K. A., Wise, J. A., Johnson, E., Poe, B., Kruse, D. H., … DeSaix, P. (n.d.). Anatomy and Physiology. Houston, Texas: OpenStax. Access for free at: https://openstax.org/details/books/anatomy-and-physiology

[1] https://doi.org/10.1371/journal.pone.0231078

Related External Link: Effects of skin care habits on the development of rosacea: A multi-center retrospective case-control survey in Chinese population


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