From the Guidelines
Pityriasis alba is not caused by gut dysbiosis or leaky gut due to gluten sensitivity, but rather a skin condition related to mild eczema, sun exposure, and dry skin. The exact cause of pityriasis alba is still unknown, but it is believed to be a combination of factors, including:
- Mild eczema or atopic dermatitis
- Sun exposure
- Dry skin There is no evidence to suggest that gut dysbiosis or leaky gut due to gluten sensitivity plays a role in the development of pityriasis alba, as discussed in the context of gut health and probiotics 1. To manage pityriasis alba, it is recommended to:
- Use gentle, fragrance-free moisturizers daily
- Apply sunscreen (SPF 30+) when outdoors
- Avoid harsh soaps and hot showers
- For persistent cases, a doctor may prescribe mild topical corticosteroids or calcineurin inhibitors The condition typically resolves on its own within several months to years, and maintaining good skin care and sun protection are the most effective ways to manage and prevent pityriasis alba. While probiotics have been shown to have beneficial effects on gut health, including improving digestion and boosting immunological function 1, there is no direct link between probiotics and the treatment of pityriasis alba.
From the Research
Pityriasis Alba Causes
The exact cause of pityriasis alba is still unclear, but several factors have been identified as potential contributors to the development of the condition.
- Atopy, xerosis, and mineral deficiencies are potential risk factors 2
- Sun exposure can exacerbate the condition, making lesions more visible 2, 3
- Poor cutaneous hydration appears to be a common theme for most risk factors and may help elucidate the pathogenesis of this disorder 2
- Inflammatory and oxidative stress-related genes, such as IL-6, IFNγ, HMOX1, and SOD1, may play a role in the development of pityriasis alba 4
- Histologic studies have revealed features suggestive of a chronic nonspecific dermatitis, including horny plugs, spongiotic edema, and atrophic sebaceous glands 5
Gut Dysbiosis and Leaky Gut
There is no direct evidence to suggest that gut dysbiosis or leaky gut due to gluten sensitivity is a cause of pityriasis alba.
- None of the studies examined the relationship between gut dysbiosis, leaky gut, or gluten sensitivity and pityriasis alba 2, 4, 6, 5, 3
- The studies focused on other potential risk factors, such as atopy, xerosis, sun exposure, and inflammatory and oxidative stress-related genes.
Other Potential Risk Factors
Other potential risk factors that have been identified include: