What causes urticaria?

The occurrence of urticaria is not actually random. There are certain factors involved, such as food, inhalation, infection, sun exposure, mental state, etc., which can all cause the occurrence of urticaria. If you don’t understand the cause of urticaria, you should seek medical diagnosis and treatment in time to avoid delaying the disease and damaging your skin health.

food:

The most common foods are fish, shrimp, eggs and milk, followed by some meats and certain plant foods such as strawberries, cocoa, tomatoes or garlic and other condiments. In addition, spoiled food decomposes into polypeptides, and alkaline polypeptides are histamine releasers. Protein foods are absorbed in the form of peptones or polypeptides before being completely digested, which can cause urticaria. This is more common in children and may also be due to the different permeability of the digestive tract mucosa in children and adults. In addition, coloring, flavoring, preservatives, and natural or synthetic substances added to food can also cause urticaria.

Inhalation:

Various external inhalants may cause urticaria, such as various pollens, dust mites, cotton wool, animal fur, chemical gases, etc. may be the cause of urticaria.

Infect:

Bacterial infections, viral infections, fungal infections and parasitic infections in the body can all cause urticaria. In addition, papular urticaria may occur after bites from mosquitoes, mites, fleas, bedbugs, etc. These are common causes of urticaria.

Cholestatic urticaria:

It is more common in young people aged 23 to 28. The lesions are characterized by small wheals with a diameter of 1 to 3 mm, surrounded by red halos, which are sparsely distributed, not fused together, and cause severe itching.