What causes itchy skin after exercise?

Possible causes of itchy skin after exercise include the following: 1. Sweat irritation: During exercise, body temperature rises and blood circulation accelerates. Salts and ammonia in sweat may irritate the skin, causing itching. 2. Sensitive skin: Some individuals have naturally sensitive skin, which becomes more prone to itching due to increased blood flow and elevated skin temperature during exercise. 3. Dry skin: Exercising in cold, dry environments can cause the skin to lose moisture, leading to dryness and subsequent itching. 4. Allergic reactions: Increased body temperature after exercise may trigger allergic responses, or individuals may be allergic to certain components in sweat, resulting in skin itching. 5. Other skin conditions: Skin disorders such as cholinergic urticaria or folliculitis may also be triggered or worsened by exercise, leading to itching. If itching persists or worsens after exercise, it is advisable to seek medical attention promptly to identify the underlying cause and receive appropriate treatment.