Which systemic factor is NOT likely to influence wound healing?

Hygiene is typically less likely to be categorized as a systemic factor influencing wound healing compared to the other options listed. Systemic factors are those that relate to the overall health and function of the body, often impacting the entire body or contributing to how effectively wounds heal.

Diabetes, for example, significantly influences wound healing because it can cause poor blood circulation, neuropathy, and impaired immune response, which all contribute to delayed healing. Age is another critical systemic factor, as the healing process tends to slow down in older adults due to decreased cell proliferation and a compromised immune response. Malnutrition affects wound healing by impairing various physiological processes essential for repair, such as collagen synthesis and immune function.

In contrast, hygiene, while important for preventing infection and maintaining skin integrity, is considered more local than systemic. Good hygiene practices can help protect wounds and may influence the quality of care a wound receives, but they do not alter the biological processes within the body that are categorized as systemic factors affecting healing.