why do mosquito's bites nearly itch while bee stings are painful?

Answer 1

Mosquitos excrete their saliva into your skin when they bite you. This keeps your blood from clotting as they suck. Humans are mildly allergic to this saliva and the body reacts by becoming itchy and swelling at the site.

Bees on the other hand excrete a toxin that can kill surrounding cells if there is a lot of the toxin. This toxin inflames the nerve endings in the surrounding tissue and pisses off the brain. The brain makes pain signals in an effort to convince you not to do that again.

Some people are allergic to bees, but that is a different reaction.

Answer 2

A mosquito bite itches because of an allergic reaction to the anti-coagulant the mosquito injects to help it during feeding -- it's a histamine response to a foreign chemical in the body, but the anticoagulant isn't meant to be painful. A bee sting, on the other hand, is an injection of a toxin that _IS_ intended to be painful, because it's meant to deliver a message for you to stay away from the hive and leave bees alone in the future. The mosquito wants to do its dirty work quietly, without calling attention to itself, which is why you often only begin to notice an itch after the mosquito is gone, while a bee sting hurts right away.

Answer 3

A mosquito injects a kind of anesthetic when it bites because it doesn't want you to know that it is there while sucking your blood and it also helps to thin the blood to make it easier to extract. A bee stings to defend it self, so its function is to be painful to make the enemy run away or sometimes to cause it to even die if allergic to the toxin secreted by the sting.

Answer 4

A mosquito injects an Anticoagutent to allow the blood to flow, while a Bee /Wasp actually has a venom/toxcin that will react to your body,