Bed bugs and lice are both parasitic insects that feed on human blood, but that's where the similarities end. Where they live, how they spread, and how you deal with them are completely different.
Bed bugs are small, flat, wingless insects that feed exclusively on blood, usually at night while their host is asleep. They are skilled hiders and can go undetected for weeks or months.
Lice are small, wingless parasitic insects that live directly on the human body. There are three types that affect people: head lice , body lice, and pubic lice.
Book your free inspection to get expert, local advice.
For bed bugs, look for rust-colored stains on bedding, dark fecal spots along mattress seams, shed skins near hiding spots, and bite marks on exposed skin after sleeping. For lice, the clearest signs are persistent scalp itching, visible nits (eggs) attached to hair shafts close to the scalp, and in some cases, seeing live lice moving through the hair. Body lice are typically found in the seams of clothing rather than on the skin itself.
Keeping bed bugs out starts with being careful when you travel or bring secondhand items into your home. Inspect hotel rooms before settling in, keep luggage off the floor, and wash clothing on high heat after any trip. Once identified, a bed bug infestation normally requires professional bed bug control, as they can be hard to treat.
Preventing lice requires a very different approach: avoid direct head-to-head contact and sharing personal items like combs, hats, scarves, or hair accessories. For schools and childcare settings, educating children about these habits is the most practical line of defense. If someone in your household has lice, consult a healthcare professional about treatment, wash bedding and clothing on high heat, and vacuum upholstered furniture.
Body lice live and lay eggs in the seams of clothing, moving to the skin only to feed. Bed bugs live in furniture and bedding and never live on the human body at all. Body lice are most commonly associated with overcrowded living conditions and limited access to clean clothing. Bed bugs, by contrast, can affect anyone regardless of hygiene or living standards. Both cause itchy bites, but the location of the insects and their eggs is the key difference.
Booklice are not true lice and are not related to head lice or bed bugs. They are tiny, soft-bodied insects that feed on mold, fungi, and starchy materials like book bindings, wallpaper paste, and stored grains. They don't bite people and pose no direct health risk, but they can indicate a moisture problem in your property.
No. Bed bugs do not live in hair. They are not adapted to grip hair shafts the way lice are, and they prefer to hide in cracks, seams, and dark voids near sleeping areas rather than on the human body. If you're finding insects in your hair, lice are a far more likely explanation than bed bugs. That said, bed bugs will occasionally crawl across a person while feeding at night, which can cause confusion. A professional inspection can confirm which pest you're dealing with.
Bed bugs are one of the most challenging pests to address because they hide well, reproduce steadily, and can survive for months without feeding.