Dandruff vs head lice and nits: What’s the difference?
When it comes to distinguishing dandruff vs head lice or dandruff vs nits, it’s very common for people to be confused between them.
Feb 21, 2026 · 4 min read
TL;DR
Dandruff is flaky skin; nits are eggs glued to hair. Dandruff brushes off; nits don't. Lice crawl; dandruff doesn't. Use a fine comb to tell them apart — nits stay on the comb, dandruff falls away.
Nits vs dandruff on a comb
Nits are oval, yellowish-white, and firmly attached near the scalp. Dandruff is white or yellow flakes that slide off easily. Comb through hair: nits stay on the comb; dandruff falls or brushes away.
Does dandruff cause nits?
No. Nits are louse eggs. Dandruff is dead skin cells. They're unrelated. If you see nits, you have lice — treat with silicone- or oil-based products or wet combing. Not sure? Check first. For hands-on help, find a clinic near you.