Mosquito's mouth, commonly called mouthparts, protrudes below the eyes and consists of six sharp spines instead of one. These needles are thinner than hair, and two of them are esophageal tube and salivary gland tube;

Two are The Lancet (upper jaw) and two serrated knives (lower jaw). These six tubes are all wrapped in foreskin for protection. The shell of the oral cavity is like a clip, which holds six needles together. Before sucking blood, it will drip saliva into your capillaries and mix with your blood to prevent blood from condensing in its esophagus and causing blockage. With the help of this blood anticoagulant, the long belly of the female mosquito is red and swollen in less than 1 minute. This sounds terrible. In fact, sucking 15~20 times like this adds up to only one tear.