Spider mites cannot live on humans. Humans are not bitten by spider mites. However, they might bite humans occasionally to check if it's a plant or not. There are, however, some mites that bite. You can find them in our post on microscopic bugs that bite. Bite bites are extremely rare, painless, and side-effect-free. A spider mite is a sap-sucking bug without a fang or mandible that feeds on plant sap. Spider mites cannot live without plants.