For as long as I can remember, my legs will start to itch when I begin jogging. Sometimes the itching is unbearable and I have to stop. I noticed that it doesn't happen during sprinting / high intensity interval work. Is there a reason for this?

  • 2
    What kind of clothing are you wearing? Because I always have this on my back and blame those darn hairs rubbing against the functional clothing!
    – Ivo Flipse
    Commented Mar 1, 2011 at 21:38
  • @Ivo: it happens with everything: shorts, sweats, etc.
    – blue
    Commented Mar 1, 2011 at 21:44

1 Answer 1


Itching/tingling indicates an increase in bloodflow due to expanded capillaries and arteries. This problem should go away as you increase your level of physical fitness. If the itching comes with a rash though, it's more likely to be exercise-induced anaphylaxis (an allergic reaction).

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