Chronic Spontaneous Urticaria (CSU)

Understanding Chronic Spontaneous Urticaria (CSU)

Chronic Spontaneous Urticaria (CSU) is a skin condition characterized by the recurring appearance of hives (urticaria) for six weeks or longer without an identifiable trigger. Unlike acute hives, which are often caused by allergic reactions, CSU occurs spontaneously and is believed to result from immune system dysregulation. The condition may significantly impact a person’s quality of life due to persistent itching, swelling, and discomfort.

Common Signs and Symptoms of Chronic Spontaneous Urticaria

Skin Symptoms:

• Hives (Urticaria): Raised, red, or skin-colored welts that appear suddenly and may change location.
• Itching (Pruritus): Persistent itching, which may be severe and interfere with sleep.
• Swelling (Angioedema): Deeper swelling, commonly affecting the lips, eyelids, hands, feet, or throat.

Other Symptoms:

• Heat Sensitivity: Symptoms may worsen with exposure to heat, stress, or exercise.
• Fluctuating Symptoms: Hives may come and go unpredictably, lasting for hours or days.
• No Identifiable Trigger: Unlike allergic hives, CSU occurs without exposure to specific allergens.

This information is provided as a resource and is not intended to diagnose a condition or prescribe treatment. If you notice any of these symptoms or have concerns about your health, please consult your physician.