Bed Bug Bites vs Flea Bites: How to Tell the Difference–Bedbug and flea bites are similar at first glance, so telling the difference can be rather difficult. You need to identify the problem so that you can properly treat it, as both insects can carry several diseases that can be passed to humans (and pets).
In general, flea bites can be felt almost immediately, are usually on the lower body, and typically don’t form patterns, appearing as random small groups across different areas. Bug bites won’t be felt until much later, tend to appear on the upper body, and can form patterns of lines or groups. Let’s break down the characteristics of each kind of bite and discuss how to better identify the insects that cause them. Read More about Bed Bug Bites vs Flea Bites: How to Tell the Difference »
You may not have a reaction the first time you are bitten; however, 
As we stated above, bed bugs don’t directly cause diseases or make you sick. Still, they can cause more than simply itchy bites. While it doesn’t happen often, bed bug bites may lead to allergic reactions in some susceptible individuals. Additionally, repeated scratching sometimes leads to an ordinary secondary infection or (in some cases) cellulitis. 
If you’ve read much about bed bugs, you know that one of the questions which comes up repeatedly is, “Are bedbugs actually invisible?” The short answer? No, not at all. Still, it’s easy to understand why people ask. The 
Avoiding those areas during particularly hot and humid weather can be a good preventative measure, in addition to regularly checking for new areas where standing water may collect. Or, if you know you are going to be in a particularly moist area, remembering appropriate clothing and repellent is key.
