Chigger bites vs bed bug bites - Conclusion. While it's difficult to distinguish a chigger bite from a bed bug bite, there are some signs (mentioned above) that can help you figure it out, if inspected closely. While both bites appear the same, the differences lie in the biting pattern and the symptoms one experiences after the bite.
Mite bites will be random, not in a trail or series of three bite marks, like bed bug bites. The best way to know if the bites you're finding on your skin were caused by bed bugs is to actually see a bed bug. If you have bed bugs in your South Portland home, they are definitely biting you.
Midge or gnat bites look like mosquito bites. Midge bites start as small, itchy bumps. A bite from a midge or gnat will usually present as a small, itchy red bump. The National Health Service said these bumps can be painful and sometimes swell up quite a bit.
Bed bug bites are similar to mosquito bites. Even that, a close study differentiates the two. Mosquito bites appear as reddish bumps which are also puffy white.
Flea bites usually look like small clusters of dots while bed bug bites are red, hard and swollen a little. So basically they look like mosquito bites. Usually the fleas bite randomly on the body.
The key bed bug bite symptom to look for is a red, raised bump, says Gibb, similar in appearance to what you would get when bitten by a spider or a mosquito.