What Causes Hives?

Hives are a skin condition that causes redness and swelling to appear on the skin. They can be caused by many different things, including allergic reactions, infections and stress.

Most types of hives last less than 24 hours and go away on their own. You may need to see a doctor if your hives don’t go away within two weeks or if they keep coming back.

Common causes of Hives

Hives are caused by the release of histamine in your bloodstream. Histamine is a chemical released when your body has an allergic reaction to something. When this happens, the blood vessels in your skin enlarge and leak fluid, which causes redness and swelling of the surrounding tissue (the hives).

Common causes of hives include:

  • Allergies: Hives are often an allergic response to something you’re exposed to. Food allergies are common triggers, but many other substances can cause hives as well.
  • Infections: Viruses and bacteria can cause hives as part of a systemic infection, such as chickenpox or Lyme disease. These infections usually occur in children or the elderly who have not been vaccinated against them.
  • Stress: Stress is a common trigger for hives because it affects the immune system and increases inflammation throughout your body. Hives may also be related to anxiety disorders or depression.

Categories of causes of Hives

Hives are a common skin condition that can be caused by many different things. There are many reasons why you might develop hives, but they can usually be broken down into two categories: physical and emotional.

Physical causes of hives include:

-Allergic reactions to certain foods, such as nuts or shellfish, or other substances like latex or insect bites.

-Infections, such as the flu or chickenpox.

-An allergic reaction to medications like penicillin or aspirin.

Emotional causes of hives include:

-Stress and anxiety manifest themselves in the body as hives.

-During pregnancy and menopause, hormonal changes can cause the immune system to overreact in response to small irritants like pollen or pet dander (dandruff).

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