What causes bacterial infections in children?

Bacterial infection is a very common phenomenon in life. Some are very minor infections, while others are relatively large infections. Bacterial infection is caused by human factors on the one hand and bacteria on the other. If a child has a bacterial infection, it is important to find out the cause so that the disease can be treated fundamentally. Let’s take a look at the causes of bacterial infections in children.

Human Factors

When the skin and mucous membranes are damaged or purulent inflammation occurs, bacteria can easily invade the body;

The human body's immune response can be divided into two types: nonspecific immune response and specific immune response. The latter can be divided into cellular immunity and humoral immunity. When the body's immune function declines, it cannot fully exert its role in phagocytizing and killing bacteria. Even if the invading bacteria are small in amount and not highly pathogenic, they can still cause infection. Nosocomial infections caused by conditional pathogens are also gradually increasing.

Bacterial factors

It is mainly related to the virulence and quantity of pathogens. When pathogenic bacteria with strong virulence or large numbers enter the body, there is a greater possibility of causing sepsis. Whether bacteria cause infection after invading the human body is related to human defense, immune function, virulence and quantity of bacteria. Intact skin and mucous membranes are natural barriers that prevent bacteria from invading the human body. Once damaged, bacteria can easily invade the body from here. The possibility of bacterial invasion is greater when squeezing inflamed areas of the skin or abscesses. In severe burns, the wound surface opens the door to bacteria, and skin necrosis and plasma exudation provide a good environment for bacterial reproduction, so infection is very easy to occur. When the mucous membranes of the urinary tract, bile duct, gastrointestinal tract, and respiratory tract are damaged, if there is stagnation of contents and increased pressure at the same time, bacteria can more easily enter the blood. Retaining catheters, indwelling catheters in veins and other blood vessels, and intubation during artificial respiration also make it easy for bacteria to invade.

Through the above introduction. Everyone should know the cause of bacterial infection in children. So when we are facing bacterial infection, we should not attribute it to our own physical reasons. It may be because this kind of bacteria is easier to invade the human body and cause infection. Therefore, we must distinguish the cause of the disease when treating it.