How Come Fleas Don't Bite Me? - pestwhisperer.com

The first thing you should understand about fleas is that they are blood-sucking parasites. Some people are more susceptible to flea bites than others. Fleas tend to prefer people with more exposed skin and those who are closer to them. This means that wearing clothes when you are outdoors will help prevent flea bites.

Fleas are small insects with six legs and strong claws on the end of each leg. Their mouthparts are tiny, and they pierce the skin to feed. The fleas then secrete saliva into the blood stream, which is then absorbed by the body. This saliva contains histamine, which causes itchiness and swelling. Because of this, fleas can only survive if they have access to human blood.

Fleas can bite humans, but it can be difficult to recognize if a flea has bitten you. Most flea bites are harmless, but others can lead to other health problems. If you’re unsure about whether or not you’ve had a flea bite, it’s best to consult a dermatologist or other health professional.

Fleas usually live in the home of animals, but they can easily jump onto humans. Because humans don’t have enough hair to cover their bodies, fleas often find a safe place in your home.