Although mosquitoes bite humans, which makes people feel uncomfortable, this behavior plays an important role in the survival history of mosquitoes. Female mosquitoes need to suck proteins from the blood of humans or animals to hatch their eggs, which is necessary for them to reproduce. At the same time, mosquitoes also take this opportunity to spread some diseases, such as malaria, dengue fever, etc.

Behind mosquito biting behavior, it reflects the diversity of various survival strategies in the biological world, and also reminds This means we need to protect our own health and the environment to reduce the chance of mosquito-borne diseases.

1. Allergy: When a human body is bitten by a mosquito, the mosquito will prick the skin through its mouthparts and inject saliva from the salivary glands into the human body. The human immune system will produce antibodies, so the antibodies and the antigens in the saliva It will combine and cause the body's immune system to release immune substances, causing vasodilation, increased vascular permeability, smooth muscle contraction, etc., causing local or systemic allergic reactions, such as itching, rash, etc.;

2. Bacterial infection: When bitten by a mosquito, wounds may be left on the skin, which is susceptible to bacterial invasion, leading to local inflammatory reactions, and symptoms such as redness, swelling, fever, and pain may occur;

3. Viral infection: Mosquitoes carry certain viruses. When they bite people, they may transmit the virus to the human body through the wound. Therefore, the virus will replicate on the skin, and viral infection is prone to occur, and flat warts may appear. , blisters and other symptoms;

4. Skin damage: The salivary glands of mosquitoes contain toxins that can cause damage to the human body. The skin is irritated and itches. If you are bitten by a mosquito, the toxins will enter the body along with the saliva, which may cause allergic reactions in the skin and cause erythema, edema and other phenomena at the bite site.

Although the relationship between mosquitoes and humans seems to be accompanied by bites and discomfort, we cannot ignore the role of mosquitoes in the ecosystem. In this summer, we can effectively reduce the bother of mosquito bites through scientific methods. At the same time, actions such as protecting the environment and cleaning up stagnant water regularly can also help reduce the breeding of mosquitoes.