Bacterial barrier

A bacterial barrier is a protective layer that prevents bacteria from entering or spreading in the body. It can refer to natural defenses like the skin and mucous membranes, which trap and block bacteria, or to medical shields such as wound dressings and sterile coverings that protect injuries or surgical sites. These barriers help reduce infection risk by stopping harmful bacteria from reaching sensitive tissues, supporting the body’s ability to heal and stay healthy. Proper maintenance and use of barriers are essential parts of infection control in healthcare and everyday life.