A sting caused by an insect which punctures the skin to suck blood, and in so doing introduces irritants.
Insect bites involve the injection of venom or other agent into the skin, which triggers an allergic reaction. Most reactions are mild, involving only an annoying itching or stinging sensation and mild swelling. Delayed reactions can occur, including fever, painful joints, hives, and swollen glands. A small percentage of people develop severe allergic reactions to insect venom, and many have difficulty breathing, faintness, rapid heartbeat, confusion, or swelling of the lips or throat. A severe reaction must be considered a medical emergency.
An injury in which the body surface is torn by an insect, resulting in abrasions, punctures, or lacerated wounds. Insect bites cause more deaths than do snake bites.
These are puncture wounds caused by bloodsucking insects like gnats, mosquitoes, fleas, and lice. While most bites result in only temporary pain or itching, some individuals may experience severe skin reactions. In tropical and subtropical regions, insect bites can be more concerning since certain biting species are capable of transmitting diseases.