Fleas are small, wingless insects that feed on animals and humans. They have mouthparts that pierce the skin and suck blood, causing itching and other symptoms. They can also carry bacteria that can cause flea-borne diseases like murine typhus and plague.
When a flea bites, it injects why do fleas bite me into the skin to prevent the blood from clotting and keep it flowing so they can suck blood. That saliva triggers an allergic reaction in some people, causing itching at the bite site. The itching may be worse if the person keeps scratching at the bites, which can damage the skin and invite secondary infections.
Flea Bites on Humans: Understanding Why Fleas Choose You as Their Target
It’s possible that the person has other itchy bug bites as well, including mosquito, chigger, and certain mite bites, which all have similar appearances to flea bites. If you’re unsure what kind of bites you have, it’s always best to visit a dermatologist who can examine your bites and give you a definitive answer.
Flea bites typically appear as tiny red marks, about two to 10 millimeters in size, and arranged in lines or clusters. They tend to show up on the ankles and legs, though they can occur anywhere on the body. The bites can itch, and excessive scratching leads to secondary bacterial infections. It’s important to use a topical over-the-counter antihistamine cream to treat the itching and reduce inflammation. Also, washing the bitten area with soap and water can help relieve the itching.