What causes itchy skin after exercise

Itchy skin after exercise is quite common in life, which can cause physical discomfort. When itching occurs, people's first reaction is to scratch it with their hands. At this time, the skin is easily damaged, which will cause the local skin temperature to rise. At this time, more histamine will be released in the blood, resulting in more itchy skin after scratching. There are many reasons for itchy skin after exercise. For example, toxins in the body are discharged at this time, which will cause skin symptoms. In addition, poor blood circulation is also an important cause of itchy skin. At this time, hot compresses cannot be used to relieve it. In addition, do not eat spicy and irritating foods, and pay attention to skin cleanliness. If you have an allergic constitution, you should go to the hospital for examination in time.

Why does my skin itch after exercise?

The removal of toxins from the body

Because exercise speeds up the body's metabolism, it prompts toxins to be excreted from the body through sweat, and sweat may irritate the skin and cause itching.

Poor blood circulation causes

When exercising, blood circulation accelerates and the body begins to sweat. However, because the subcutaneous capillaries in some parts of the body are too narrow and the skin pores are tightened, they cannot withstand the pressure brought by the accelerated blood circulation. At the same time, the pores cannot completely eliminate the sweat, so the skin will feel itchy.

Dry skin causes

The skin is dry and itchy, and exercise accelerates blood circulation, causing the body to heat up, which may aggravate the itching.

Caused by excessive temperature difference

If you exercise in the cold outdoors and then go into a warm room, your skin will become itchy due to irritation caused by the temperature difference between indoors and outdoors.

Caused by cholestatic urticaria

During exercise, heat exposure, mental stress, etc., the temperature deep inside the body rises, prompting acetylcholine to act on mast cells, which can lead to cholesteric urticaria, which manifests as round papular wheals 2 to 4 mm in diameter, surrounded by varying degrees of redness, resulting in skin itching, tingling, etc.

What to do if your skin itches after exercise

1. If the skin itches after exercise due to dry skin, you can moisturize the skin more, supplement more vitamin A, and eat foods rich in vitamin A, such as animal liver, carrots, rapeseed, etc.

2. When choosing clothes, choose cotton and loose-fitting ones. Soft, less irritating clothing can prevent the itching from spreading further, increase breathability, and will not cause allergies after contact with the skin.

3. In terms of diet, drink more water and eat more fruits to replenish water, and avoid eating spicy foods such as chili peppers.

4. Control bathing time. Taking a bath for too long will wash away more of the sebum film on the surface of the human body. The skin lacking the protection of the sebum film will appear dry and flaky, aggravating the itching of the skin.