why do mosquito bites itch?
613959
because when they bite you, a long tube goes into your skin. that's when they suck up blood. at the same time, they inject poison. mosquitoes need blood to fertilize their eggs
568307
Have you change soap or detergent? Even shampoo can cause you to itch.  Also stress has been known to cause people to itch. It is a way for your body to handle it.
328098
Our skin has a defense system that makes us aware of annoying things that touch our body. Sometimes that annoying thing is just a fly. But sometimes we come into contact with something like poison ivy that causes a reaction in our skin. Poison ivy or bug bites cause an allergic response that keeps our skin itchy for a while.
426435
Because of the viral load. It does not replicate/ amplify enough in the mosquito to cause an infection in its next victim...\nIf say the mosquito suck a 'mouthful' of blood from an HIV individual...that would only work out to maybe 1 or 2 virions. Far more is needed for an infection to be transmitted.
1133261
it is possible that you have some other type of creature in your bed.\nYou need to have the mattress cleaned to be sure.  Try sleeping with bug spray for a night or two.  If that doesn't help, then it's possible you have some sort of flea or bedbug.  \n\nFor itching bites, you can use a hydrocortozone (sp?) cream.  Like benadryl.  THey say that calamine lotion works, but it's ugly and never works for me.  Some use vinegar.. but that stings.  Some use peroxide, and some use toothpaste.  both of these things will "dry out" the poison in the bite and work, but are not great for your skin.  \n\nUnfortunately though, mosquito bites are one of those things we all have to live with sometimes.  Just try not to scratch them "raw" that will leave scars.  Yuck.\n\ngood luck!
606435
Because you smell the tastiest.\n\nEver wonder why the mosquitoes bite you and not the guy next to you? They are attracted to certain chemicals in the carbon dioxide being released from your body and the guy next to you doesn't have as much of these chemicals in his carbon dioxide as you do. However, there are thousands of chemicals already identified in human carbon dioxide release! What are these certain chemicals that attract mosquitoes? Have they been identified? Yes! but the scientists who discovered them aren't telling us exactly what they are! That’s right they are keeping these facts a secret! All they will say is that three key chemical signatures found in the release of human carbon dioxide will attract mosquitoes at a rate of 100%.
359603
I learned when a mosquito bites you, she's sticking her needle-like mouthpart into your skin and injecting saliva rich in anticoagulating enzymes so the blood will flow smoothly. Some people are sensitive to those enzymes so their skin itches and when you scratch it, it's irritating the skin even more which will lead to redness and minor swelling around the area of the bite. \n\nI could be wrong since my knowledge on the subject is more than 10 years old. ^_^;
875033
I itch all the time. And I've scratched until it bled, and keep scratching after that. It's inside and scratching doesn't really help. I sympathize because itching makes life miserable.\n\nIf the itch is caused from something on the top of the skin (bug bite, irritation, etc.) I use a product call Itch-X. It's the best product for itching I've ever found. If you've already scratched it a bit raw, then it burns and stings like crazy when you put it on, then the itching, burning, stinging stops immediately. Ahhhhh! It's the best product I've ever found. I find it at Walgreens, or you can look it up on the internet and see where they sell it in your area.\n\nIf it itches under the skin and a topical wouldn't help, put an ice pack on it. The cold will stop the itching. I've never had it to fail. Heat will make it itch more, and ice will stop it.\n\nGood luck.
610830
the reason our skin itch sometimes is due to the effect of our own body immune system against antigen (foreign body not recognize by our immune system). \nWhen antigen enters our body through skin, it is detected by Langerhans cells beneath our skin and triggers our immune system to release histamine to eradicate the antigen, and the histamine secretion is the reason why our skin feel itch sometime.
348739
Swelling is caused by increased blood flow to the affected area.  The redness and itching is caused by certain cells in the area releasing "histamine" proteins to eliminate the foreign substance in your body.  \n\nA side effect of these histamines is slight damage to the surrounding tissue, which we feel as an itch -- the itch response is related to the pain response, in that it comes from stimulation of the same sensory structures.\n\nThis is a kind of allergic reaction that affects some people more than others.  It's true the mosquito does inject an anti-coagulant into your body so that your blood won't clot as it's feeding, and your body reacts to this by releasing histamines.  But I figured you wanted to know how itching worked, fundamentally.
680832
they are like mosquito bites just smoother and way more itchy! good luck in tracing the bugs cos they are tiny!
1174682
Sounds like mosquito bites to me....hives would cover a much larger area and appears like a rash....try spreading vinegar onto the bites. should take the itch out and reduce the swelling.
341987
an itch is somewhere in your body that you want to scratch really very much. Itching can be caused due to allergy to certain types of foods, medicine, moquitoes, sunlight or warm weather in general.
478704
When people and animals breathe, they exhale an invisible mixture of carbon dioxide (CO2) and Octenol (a type of alcohol) along with a trace of moisture. Mosquitoes and other biting insects have ultra-sensitive receptors which can detect the presence of these chemicals, or kairomones, from almost 100 feet away. The attraction is so powerful, they immediately fly toward the source of the chemicals.\n\nMoreover, circulating blood in animal and human targets radiates body heat. Mosquitoes also have sophisticated heat sensors to help them locate blood, their food supply. In effect, mosquitoes become heat-seeking missiles, following both exhaled gases and body heat directly to their target. Within 30 feet, mosquitoes can actually see their victims. When they arrive, they fly around the victim to find landing sites where blood is closest to the surface.
574690
What an interesting question.  I would say no for a couple of reasons.\n\n#1) Mosquitoes are attracted to carbon dioxide (CO2) which comes when an animal exhales.  They can sense it from quite the distance and this is how they home in on you.  \n\n#2) If mosquitoes were attracted to the warmth, we would see them on freshly killed animals.  This is not the case.  \n\n#3) The final reason I can come up with is the fact that without any circulation, the mosquito would have no luck getting any blood when its mouthparts slipped through the skin.\n\nOf course, I am only using my experience to justify these answers.  Let's do a test!!
4184
It's part of the healing process. Itching is a result of the nerve endings around the scar being stimulated. At first, the stimulation is part of the healing. Itching may last months or years afterwards, though, as the scar tissue stretches and again stimulates the surrounding nerve endings.
1009918
Mosquitos prefer people with a higher iron content in thier blood. \n\npeople with low blood iron are less likly to be bitten. \n\neating bannanas for instance, before you go outside, raises your potassium and iron count, and will make you more attractive to mosquitos.