Which of the following is NOT a common sign of infection?

Which of the following is NOT a common sign of infection?

• A. Redness
• B. Pus
• C. Elevated WBC
• D. Hair loss

Answer: (D)

When the body fights an infection, you usually see inflammation and immune responses. Redness comes from increased blood flow and capillary dilation at the infection site. Pus is a collection of immune cells, debris, and sometimes bacteria—a direct sign that the body is actively battling an invader. Elevated white blood cell count shows a systemic response, as the immune system ramps up to fight the infection. Hair loss, on the other hand, isn’t part of that typical inflammatory or systemic response. It can result from other causes like hormonal changes, traction, trauma, or chronic conditions, but it doesn’t indicate infection in the same way as redness, pus, or an elevated WBC do. So hair loss is not a common sign of infection.

When the body fights an infection, you usually see inflammation and immune responses. Redness comes from increased blood flow and capillary dilation at the infection site. Pus is a collection of immune cells, debris, and sometimes bacteria—a direct sign that the body is actively battling an invader. Elevated white blood cell count shows a systemic response, as the immune system ramps up to fight the infection. Hair loss, on the other hand, isn’t part of that typical inflammatory or systemic response. It can result from other causes like hormonal changes, traction, trauma, or chronic conditions, but it doesn’t indicate infection in the same way as redness, pus, or an elevated WBC do. So hair loss is not a common sign of infection.