pirosodását

Pirosodását is a term used to describe the reddening of the skin, most conspicuously on the face, caused by increased blood flow in the superficial skin vessels. It is commonly referred to in everyday language as flushing or blushing and can occur in healthy individuals as a normal physiological response or as a symptom of other conditions.

The underlying mechanism involves vasodilation of the cutaneous arterioles, which increases blood flow to the skin. This process is mediated by the autonomic nervous system and, in some cases, by circulating hormones or signaling molecules such as nitric oxide. Triggers include emotional stimuli (embarrassment, stress), heat, physical exertion, spicy foods, alcohol, and certain medications. In addition to immediate flushing, some people experience postural or nocturnal flushing, depending on the cause.

Pirosodását can be transient or chronic. Transient reddening is common and harmless, lasting seconds to minutes. Persistent or recurrent redness may indicate an underlying condition, most notably rosacea, which causes chronic facial erythema and sometimes edema or visible blood vessels. Other causes of facial reddening include fever, sun exposure, allergic reactions, dermatitis, fever from infection, or hormonal changes.

Diagnosis is typically clinical, based on appearance and accompanying symptoms. Management focuses on addressing triggers, using sun protection, and, in cases like rosacea, dermatological treatments (topical agents, laser therapy) and lifestyle adjustments. When redness is sudden, severe, or accompanied by other symptoms, medical evaluation is recommended to rule out emergency conditions.