Psoriasis
Psoriasis is a chronic skin disease that causes patches of thick, red, scaly skin on various parts of the body. Its cause is unknown and symptoms tend to wax and wane over time.
Psoriasis falls under theSkin, Hair, & Nailscategory.
Last Updated:October 13, 2024
Psoriasis is a chronic inflammatory skin disease characterized by the rapid regeneration of skin cells, which leads to thick, red patches covered with white or silver scales. A 2017 study indicated that up to 11% of adults and 1.4% of children globally are affected by this condition.
Psoriasis is characterized by elevated red lesions that are dry and covered with silvery scales. These lesions can occur on various parts of the body, including the elbows, knees, scalp, face, palms, and feet.
Psoriasis is diagnosed primarily through a clinical evaluation of the rash, symptoms, and ruling out of other similar conditions by healthcare professionals. This process includes obtaining a clinical history and conducting a thorough skin examination.
Medical treatments for psoriasis vary based on the severity of symptoms and include topical creams, oral or injected immunosuppressants, and phototherapy. Topical treatments are typically used for milder cases, but more severe cases may require immunosuppressants or phototherapy if topical treatments are ineffective.
Several dietary supplements (including fish oil, vitamin D, selenium, and probiotics) have been studied for their potential effects on psoriasis symptoms; some showed benefits, whereas others were deemed ineffective. However, more rigorous research is necessary before definitive recommendations can be established.
Diet can affect psoriasis because studies show that individuals with psoriasis often consume fewer Mediterranean diet foods. Dietary interventions, such as a hypocaloric or gluten-free diet, may help reduce psoriasis symptoms, but dietary changes should complement standard medical treatments.
There is weak evidence that saltwater baths combined with phototherapy may be effective for psoriasis, but further research is needed. Additionally, small studies suggest that meditation might help alleviate some symptoms.
Psoriasis is believed to be caused by an excessive immune response that leads to an overproduction of skin cells. Its development involves a combination of genetic, environmental, and psychological factors.
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- ^The content of this page was partially adapted from MedlinePlus of the National Library of Medicine
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