Question: do immature bed bugs bite?
Answer: Bed bug bites are itchy, so they may have a scab in the center. But this is a trait that is more typical of flea bites. If you're getting lots of bites on your feet, ankles, and lower legs, and those bites have scabs in the center, you probably have flea bites. Bed bugs will never have a rotted center or a blister.