Here’s what we do and don’t know about rosacea.
- It is not contagious
- It is inflammatory
- It appears on the face
- It looks like eczema, acne, or an allergy
- Everyone’s rosacea severity is different
- There are treatments for rosacea
Rosacea has four subtypes
- Erythematotelangiectatic – redness with visible blood vessels
- Papulopustular – redness with visible blood vessels, and tiny acne-like pustules
- Phymatous – redness with visible blood vessels, and tiny acne-like pustules, and thickened skin on the nose (rhinophyma)
- Ocular – redness with visible blood vessels, and tiny acne-like pustules, and thickened skin on the nose (rhinophyma), but with dry eyes that tear and burn
The causes (that we know of) of rosacea
There is no one cause that we know of, because triggers seem to differ, as do solutions for each of you. Things that may trigger rosacea to initially develop could include:
- Mites (demodex mites, which live near hair follicles in mammals)
- Issues with blood vessels
- SIBO (small intestinal bacterial overgrowth)
- Leaky gut syndrome
- Helicobacter pylori
Rosacea sufferers have more of these mites than other people. (Read the study) This might make it worse or cause the problem, due to the mites being an irritant. Another idea is that the mites release a bacteria when they die, causing inflammation.
The blood vessels
The blood vessels in your face may become enlarged and inflamed, but we’re not sure why.
Intestinal inflammation or infection
It has been put forward that some rosacea could be caused by digestive problems like Helicobacter pylori or small intestinal bacterial overgrowth (SIBO). The role of these conditions in rosacea is under debate, with evidence proving changeable and difficult to pin down.