What is Urticaria?
Urticaria, commonly known as hives, is a skin condition characterized by temporary vascular permeability changes that lead to localized swelling. It presents as itchy welts of varying sizes, with about 20% of cases involving angioedema. Chronic urticaria is defined as episodes occurring daily or intermittently for more than 6 weeks.
Common Symptoms
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Itchy skin welts (wheals)
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Red or skin-colored raised patches
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Burning or stinging sensations
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Swelling that may migrate to different areas
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Individual lesions typically resolve within 24 hours
Main Classification
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Spontaneous Urticaria
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Acute spontaneous: Symptoms lasting ≤6 weeks
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Chronic spontaneous: Symptoms persisting >6 weeks
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Inducible Urticaria
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Physical types: Dermatographism, cold-induced, heat-induced, pressure-related
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Non-physical types: Cholinergic, contact, aquagenic
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Potential Triggers and Factors
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Environmental factors: Temperature changes, pressure, sunlight
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Contact substances: Certain materials, water, chemicals
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Physical stimuli: Exercise, stress, vibration
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Underlying health conditions
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Genetic predisposition in some cases
When to Seek Medical Help
Consult a healthcare provider if you experience:
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Persistent or recurrent hives
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Symptoms affecting daily activities
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Swelling involving face or throat
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Difficulty breathing accompanying skin symptoms
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Symptoms lasting beyond several days
Important Note: This information is for educational purposes only and does not substitute professional medical advice. Individual cases may vary, and proper diagnosis by a qualified healthcare professional is essential for appropriate management.
