Both flea and bedbug bites may be a group of small dots on your skin, though bedbug bites tend to be more linear, whereas flea bites tend to be more scattered. If you notice a group of small dots ...

You will not see the flea bites, but you will see evidence of the bites. So you’ll see flea dirt, which is the product of a flea ingesting your pet’s blood and then passing it as feces.