Why Some People Get Itchy When They Exercise Dr. Kunal Sood Explains the Science
Dr. Kunal Sood recently explained why this happens, helping people understand the possible causes behind this unusual but fairly common experience.
Some people feel an urge to scratch during or right after a workout, even if they don’t see a rash. While this can be uncomfortable, experts say it’s often a harmless response to physical activity. Dr Kunal Sood explains why this happens, helping people to understand the possible reasons for this unusual but fairly common experience.
What Is Exercise-Induced Pruritus?
He said one common reason is increased blood flow during exercise. As the body heats up, blood vessels dilate to send more oxygen and nutrients to muscles. This expansion can irritate nearby nerve endings, causing a temporary itching sensation, especially in people who are new to exercising or who are returning after a long break.
Histamine and Sweat May Also Be Involved
Another possible offender is the release of histamine, a chemical involved in the body’s immune response. Some people release more histamine when they exercise so it could lead to itching. Sweat and friction from clothing and dry skin can irritate the skin further and make the feeling more noticeable during workouts.
When it might be a medical condition
Persistent or severe itching, especially with hives, swelling, dizziness or trouble breathing, could be a sign of a condition like exercise-induced urticaria or exercise-induced anaphylaxis, Dr. Sood says. These are rare conditions but need prompt medical attention. Anyone experiencing these symptoms should discontinue exercise and seek medical attention immediately.
Tips to help stop itching during exercise
Experts recommend drinking lots of water, wearing breathable and moisture-wicking clothes, using a gentle moisturiser if you have dry skin and gradually increasing the intensity of your workout rather than making drastic changes. And being well-warmed-up before exercise may also help with reducing symptoms. If itching continues despite these things, or is frequent, it may be a good idea to see a dermatologist or healthcare provider to find out what is causing it.
Exercise-related itching is common and usually temporary and not something to be worried about. However, knowing the triggers and signs of warning can help to ensure a safer, more comfortable fitness routine.
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