It can be distressing to wake up with a mysterious swollen red rash on your ankle. Could that rash be an insect bite? And what kind of bug bit you? The answers aren't so easy to figure out.

There are many possible causes of red, discolored spots on the feet. Injuries, insect bites, irritation, and infections can all affect the skin on this part of the body, causing red dots on the feet.

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On light skin tones, bedbug bites usually look pink or red. On darker skin tones, they may be purple and less noticeable. There are several ways to reduce the chances of getting bitten by bedbugs.