Skin Care Education

Rosacea

A chronic inflammatory skin condition causing persistent facial redness, episodic flushing, visible blood vessels, and sometimes acne-like spots. More prevalent in fair skin tones and in women, though often more severe in men.

What Is Rosacea?

Rosacea is a chronic inflammatory skin condition that primarily affects the central face, causing a range of symptoms including persistent redness, episodic flushing, visible small blood vessels, and in some subtypes, papules and pustules that can resemble acne. It is a relapsing and remitting condition, meaning most affected individuals experience periods of relative calm alongside flares of more pronounced symptoms.

Rosacea affects an estimated 5 to 10 percent of the global population, making it one of the most prevalent chronic skin conditions. It is considerably more common in individuals with fair skin tones and in women, though when it occurs in men it tends to follow a more severe course. It typically develops in adulthood, most commonly presenting between the ages of 30 and 60, though earlier onset is not uncommon.

Rosacea cannot be permanently cured, but it can be effectively managed. With appropriate identification of personal triggers, consistent protective skincare, and professional treatment where needed, most individuals with rosacea can achieve significant reduction in the frequency and severity of flares and meaningful improvement in the background redness and visible vessels that characterise the condition between flares. Left unmanaged, rosacea tends to be progressive, with background redness deepening and vascular changes becoming more established over time.

Subtypes of Rosacea

Erythematotelangiectatic rosacea (ETR): the most common subtype. Characterised by persistent central facial redness, episodes of flushing, and the development of visible fine blood vessels (telangiectasia). Skin may feel sensitive and sting or burn with product application.
Papulopustular rosacea: involves persistent or recurring red bumps (papules) and pustules on a background of redness. Closely resembles acne but differs in its distribution, lack of blackheads and whiteheads, and in its underlying mechanism. Sometimes called acne rosacea, though this term is not clinically preferred.
Phymatous rosacea: characterised by progressive skin thickening and irregular surface texture, most commonly affecting the nose (rhinophyma) but also potentially the chin, forehead, cheeks, and ears. More prevalent in men.
Ocular rosacea: affects the eyes and eyelids, causing redness, dryness, burning, and irritation. Can accompany facial rosacea or occur independently. Requires ophthalmological assessment if significant.

Causes and Contributing Factors

Factor	Description
Genetic predisposition	Rosacea has a significant hereditary component and frequently runs in families. Certain genetic variants affecting immune regulation and vascular function are associated with increased susceptibility. Fair skin and Northern European ancestry are genetic risk factors, though rosacea occurs in all ethnicities.
Immune system dysregulation	Rosacea involves an overactive innate immune response in the skin. Elevated levels of cathelicidin antimicrobial peptides and other immune mediators contribute to the chronic low-grade inflammation and vascular reactivity that underlie the condition.
Vascular hyperreactivity	The blood vessels of the central face in rosacea-prone individuals respond with exaggerated dilation to stimuli that would produce a more modest response in unaffected individuals. This heightened vascular reactivity produces the characteristic flushing and, over time, contributes to permanent vessel dilation.
Demodex folliculorum mites	One of the most consistent and clinically significant triggers for rosacea flares. UV radiation stimulates vascular reactivity and inflammatory mediator production in rosacea-prone skin. Consistent broad-spectrum sun protection is considered one of the most important management measures.
Environmental and lifestyle triggers	A wide range of environmental and lifestyle factors can precipitate flares in susceptible individuals. Common triggers include heat, spicy food, alcohol particularly red wine, vigorous exercise, emotional stress, cold wind, and certain skincare ingredients. Personal triggers vary considerably between individuals.
Skin barrier impairment	Many individuals with rosacea have a compromised skin barrier, which increases sensitivity to products and environmental stimuli and contributes to the reactivity and discomfort associated with the condition. Supporting the skin barrier is an important component of rosacea management.

Frequently Asked Questions: Rosacea

No. Although papulopustular rosacea can produce bumps and pustules that closely resemble acne, the two conditions are fundamentally different in their underlying mechanisms, their distribution patterns, and the characteristics of their lesions. Acne is caused by blocked pores, excess sebum, and Cutibacterium acnes bacterial activity. Rosacea is a chronic inflammatory and vascular condition driven by immune dysregulation and vascular hyperreactivity. Rosacea does not produce blackheads or whiteheads, which are characteristic of acne. Treating rosacea with acne-specific approaches such as aggressive exfoliation or certain acne medications can worsen the condition rather than improving it.

Triggers vary considerably between individuals and identifying personal triggers is an important part of managing the condition. Common triggers reported across the rosacea population include sun exposure, heat, spicy food, alcohol (particularly red wine), vigorous exercise, emotional stress, temperature extremes, certain skincare products and ingredients (particularly those containing alcohol, fragrance, menthol, and some exfoliating acids), and some medications. Keeping a trigger diary is a widely recommended approach for identifying patterns in an individual’s flares.

For many people, rosacea is a progressive condition if left unmanaged. The background redness tends to deepen over time, visible vessels become more established and numerous, and the skin’s sensitivity often increases. In some individuals, particularly men, phymatous changes may develop with progressive thickening and texture changes of the affected skin. With appropriate management of triggers, consistent protective skincare, and professional treatment where indicated, the progression of rosacea can be significantly slowed and in many cases the condition can be kept well controlled.

Yes. Rosacea is significantly more common in individuals with fair skin tones and is particularly prevalent in people of Northern European descent, though it can affect all ethnicities. Women are diagnosed with rosacea approximately three times more frequently than men. However, when rosacea does occur in men it tends to be more severe and more likely to progress to phymatous changes. The condition typically develops in adulthood, most commonly between the ages of 30 and 60, and a family history of rosacea substantially increases individual risk.