Bacteria can enter the body through the skin only if the skin is?

Bacteria can only enter the body through the skin when the skin is broken. The skin acts as a primary barrier that protects the underlying tissues from pathogens, including bacteria. When the skin is intact and unbroken, this barrier prevents the entry of microorganisms. However, once there is a break in the skin, such as a cut, abrasion, or puncture, the protective barrier is compromised, allowing bacteria to penetrate and potentially cause an infection. The cleanliness of the skin may play a role in preventing infection once the skin is broken, but it does not affect the fundamental ability of bacteria to enter the body. Understanding this concept is crucial for practices in areas like electrology, where the skin may be disturbed during hair removal procedures.