What causes rosacea?

Rosacea may be caused by poor lifestyle habits, mite infection, genetic factors, or other reasons. It is important to seek timely medical examination and treatment at a hospital, with management tailored to the specific cause.

1. Poor Lifestyle Habits

If a patient consistently maintains unhealthy habits—such as smoking, drinking alcohol, or frequently consuming spicy and irritating foods—rosacea may be triggered. Symptoms may include facial redness and skin irritation. Under medical guidance, topical treatments such as fusidic acid sodium ointment, mupirocin ointment, or metronidazole gel may be used. A light diet is recommended, along with quitting smoking and abstaining from alcohol.

2. Mite Infection

Poor facial hygiene can lead to mites parasitizing the skin, particularly within hair follicles of the nose, potentially causing rosacea. With doctor's advice, medications such as metronidazole gel, sulfur ointment, or fusidic acid ointment can be applied. It is advisable to wash the face with lukewarm water daily and maintain good facial cleanliness.

3. Genetic Predisposition

Rosacea can be hereditary. If family members have conditions such as excessive sebum production or hormonal imbalances, the individual’s risk of developing rosacea increases significantly. Common symptoms include nasal erythema and papules. Photorejuvenation (intense pulsed light therapy) may be used under medical supervision, which can effectively improve rosacea symptoms.

In addition, hormonal changes during certain life stages—such as male puberty or female menopause—may also trigger rosacea. Patients should actively seek appropriate treatment based on their individual circumstances.