How head lice alter the scalp microbiota
Microbiota are ‘communities’ of microorganisms that exist in and on the human body, including viruses, bacteria and fungus.
Feb 21, 2026 · 4 min read
TL;DR
Research suggests head lice may affect the community of bacteria on the scalp (microbiota). The practical impact is unclear — treat lice as usual with silicone- or oil-based products or wet combing.
Where is microbiota on the body?
Microbiota are the communities of bacteria, viruses, and fungi that live on and in our bodies. The scalp has its own microbiota, which can influence skin health.
Why is microbiota important?
Studies show that people with head lice may have different scalp bacteria than those without. This could affect itching or skin response. More research is needed. For now, focus on effective treatment: silicone- or oil-based products or wet combing. Checker here.