What Is Rosacea

What Is Rosacea - Causes, Diagnosis, Treatment
Rosacea is an inflammatory disease of the face that resembles acne. Most rosacea patients have a pink to red discoloration of the cheeks and nose caused by the dilation of certain tiny but visible blood vessels in the skin. People with rosacea also tend to have both small and large inflammatory bumps and pustules, which may coalesce to form larger plaques, typically on the cheeks. In persistent cases of rosacea, there is an increased growth of the soft tissues of the skin and enlargement of the sebaceous, or oil, glands. Most of these changes occur on the cheeks and nose, but they can occur anywhere on the face and scalp.

What Causes Rosacea?
The cause of rosacea is unknown. Theories include a genetic predisposition, anxiety or psychological factors, gastrointestinal disturbances and infectious causes, including certain mites and bacteria. Most people who have rosacea also have a family member with the disease. To date, no specific gene or genes have been identified.
High blood pressure, also called hypertension, has also been linked to rosacea. Many people who have rosacea have high blood pressure. However, many do not. This theory is not widely accepted. Researchers also are studying a mite called Demodex folliculorum. People who have rosacea generally have a larger than average number of these mites in their pustules and hair follicles.

Another interesting association links rosacea to migraine headaches. Migraines are two to three times more common in those with rosacea, according to studies. Rosacea is also more common in women in their late 30s and early 40s, which suggests a possible link to hormonal changes However, this theory does not explain the incidence of rosacea in men of the same age.

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