Flea bites on humans can be irritating, causing an itchy, red mark that lasts up to 48 hours. While the bites are not serious, you should be careful not to scratch the area because this can lead to further irritation and infection. In addition, fleas can carry bacteria and cause serious diseases if they become infested with enough host animals.
Fleas are not common on humans, but they can bite. The bites are itchy and hard to miss, so most people will notice if they have fleas. However, fleas cannot breed on humans because they lack feathers and fur and need several days to feed and reproduce. They also cannot bite through clothing or hide underneath clothing.
The bites are red and itchy, and often appear in clusters. They are smaller than mosquito bites, and usually appear on the lower body. However, if you sleep with your pet, these can spread to your upper body, as well. In such a case, it is advisable to consult a doctor to rule out any underlying conditions. You can also use natural flea repellents to prevent your pets from getting fleas.
Adult fleas measure 1.5 mm to 4mm long overall. They have flat, dark brown bodies with two mouth parts, which are adapted to pierce the skin and feed on blood. While fleas prefer to live on pets, humans can also get them if the preferred host is absent. This is because fleas are unable to survive without a warm-blooded animal to feed on.