What causes rosacea?
The cause of rosacea is unknown. A history of redness and flushing precedes Rosacea in most people. Furthermore, rosacea tends to affect the “blush” areas of the face. Emotional factors (stress, fear, anxiety, embarrassment, etc.) may trigger blushing and aggravate rosacea. A flare-up can be caused by changes in the weather like strong winds or a change in the humidity. Sun exposure generally aggravates rosacea.
The exact cause of rosacea is unknown, although several theories exist. One theory of rosacea’s origin is that the disease may be a component of a more generalized disorder of the blood vessels, which could explain why rosacea sufferers have a tendency to flush. Another theory is that changes in normal skin bacteria or infection of the stomach by Helicobacter pylori may play a role. Other theories suggest that the condition is caused by microscopic skin mites (Demodex), fungus, or a malfunction of the connective tissue under the skin or even psychological factors. None of these possibilities has been proven.
A. Although the exact cause of rosacea is unknown, various theories about the disorder’s origin have evolved over the years. Facial blood vessels dilate too easily, and the increased blood near the skin surface makes the skin appear red and flushed. Various things — called trigger factors — can increase this redness response. Acne-like bumps appear, often in the redder area of the central face. This may be due to factors related to blood flow, skin bacteria, microscopic skin mites (Demodex), irritation of follicles, sun damage of the connective tissue under the skin, an abnormal immune or inflammatory response, or psychological factors. None of these possibilities has been proven, although potential inflammatory pathways have been identified in recent ongoing research — including an immune response triggered by a type of antimicrobial protein known as cathelicidin. A recent study also found that certain bacteria present on otherwise harmless Demodex mites could prompt an inflammator
A. The exact cause of rosacea is unknown, although several theories exist. One theory of rosacea’s origin is that the disease may be a component of a more generalized disorder of the blood vessels, which could explain why rosacea sufferers have a tendency to flush. Another theory is that changes in normal skin bacteria or infection of the stomach by Helicobacter pylori may play a role. Other theories suggest that the condition is caused by microscopic skin mites (Demodex ), fungus, a malfunction of the connective tissue under the skin or even psychological factors. None of these possibilities has been proven.
Rosacea is primarily a disorder of the facial blood vessels. Experts from across the world agree that vascular abnormalities are central to all stages and symptoms of Rosacea. To paraphrase: Rosacea inflicted blood vessels undergo changes in function and become hyper-responsive to internal and external stimuli.These changes are ultimately responsible for the progression of all Rosacea symptoms. As with many conditions, there appears to be a genetic propensity to developing Rosacea.
