Urticaria is a common skin disorder that “**affects about one in five people at some point in their lives**.” It causes intensely itchy, raised areas called weals or hives, which can be circular, ring-shaped, or merge into larger patches. These marks often appear after scratching and can develop anywhere on the body.

The condition occurs when “**mast cells in the body release histamine and other chemical substances into the bloodstream**,” causing fluid to leak from tiny blood vessels in the skin and forming welts. While individual hives usually fade within 24 hours, the overall condition can persist and require ongoing management.

Urticaria is often accompanied by angioedema, a deeper swelling under the skin affecting lips, eyelids, or the inside of the mouth. Unlike hives, angioedema “**tends to be more painful than itchy and usually takes longer to subside**.” If it occurs without hives, it may indicate hereditary angioedema, which requires specialized testing and treatment.

Based on duration, urticaria can be classified as: acute (lasting around six weeks), chronic (lasting longer than six weeks), or physical (triggered by scratching, cold, pressure, sunlight, or heat). Common causes include allergic reactions, infections, and emotional stress.

Most hives resolve on their own, but persistent symptoms may require treatment. Doctors may recommend “**antihistamines, steroid medications, or menthol-based creams to help reduce itching and discomfort**.” People with allergies, reactions to certain medications, or sensitivity during illness are more prone to developing hives. Awareness of triggers and proper management can help control flare-ups and reduce discomfort.