Flea bites typically appear within minutes or hours after the bite, showing up as small, red, itchy bumps. The timing of the bite's appearance can vary depending on an individual's sensitivity.

Flea bites are usually quick to appear and cause immediate itching. The reaction may be more delayed in some people, particularly if they have a milder reaction to flea saliva. Flea bites are most often located around the ankles, waist, and legs and can be treated with anti-itch creams to alleviate symptoms. Removing fleas from the environment is essential to stop bites.