Gnats are sometimes called no-see-ums because they're so small. Some species of gnats bite humans. The bites usually cause tiny, red bumps that are itchy and irritating. Although it's uncommon, there are some instances where gnat bites may cause a severe allergic reaction.

How can you tell if a gnat is biting you?

A gnat bite most often occurs on uncovered skin – especially on the head, neck, forearms, hands and legs. The symptoms of a fly or gnat bite will vary depending on which type of insect bit you. In general, you may notice a pinprick or narrow red spot at the site of the bite that will begin to itch.

Can gnats bite you in bed?

Yes, but only some types of gnats female gnats will bite you. However, it's not the same kind of bite you would receive from a mosquito or a bed bug. ... Because of the way they go about biting, gnats can actually be more painful that a mosquito or bed bug bite. The bites of biting gnats and midges cause a burning feeling.