Scabies is a contagious skin condition caused by microscopic mites that burrow into your skin, causing intense itching. Bed bugs are visible insects that live in your surroundings, not on you. If you cannot find any bug but the itch is severe, see a doctor about scabies.
Comparing scabies vs bed bugs is easiest when you focus on one clear framework: the Burrow-or-Hide test. Scabies mites burrow into your skin and stay there, so you never see them; bed bugs hide in your surroundings and only crawl onto you to feed. That single distinction separates a medical skin condition from an environmental pest more reliably than the bite marks alone, which can look similar. If you are unsure what you are looking at, it also helps to review bugs that look like bed bugs and early signs of bed bugs.
The two are fundamentally different problems. Scabies is caused by a tiny mite that lives inside human skin, is contagious from person to person, and needs a doctor's diagnosis and prescription treatment. Bed bugs are insects you can actually see, they are not contagious, and they are not known to transmit disease to people. Because scabies is a medical condition, it is worth ruling in or out with a professional.
Scabies vs Bed Bugs — Side by Side
Feature
🦠 Scabies
🛏️ Bed Bugs
What it is
Microscopic mites that burrow into the skin; invisible to the naked eye.
Visible insects that live in your surroundings, not on your body.
The itch & rash
Intense itching, often worse at night; rash in skin folds (finger webs, wrists, waist) with thin burrow lines.
Bites on exposed skin; you can often find physical signs such as bugs or dark fecal spots.
Spread
Contagious person to person through close skin contact.
Not contagious; does not transmit disease to people.
Treatment
Needs a doctor and prescription treatment.
Managed by treating the home and belongings, not the person.
The clearest split: scabies is a contagious skin condition treated by a doctor; bed bugs are a visible pest treated in the environment.
How to Tell Scabies from Bed Bug Bites
The difference between scabies and bed bug bites comes down to where the problem lives. Scabies is caused by mites that burrow into the skin, so you cannot see the mite itself. The itch is often intense and worse at night, and the rash tends to appear in skin folds such as the webbing between the fingers, the wrists, the elbows, and around the waist, sometimes showing thin burrow lines. Because it spreads through close contact, other people in the household may develop the same itch.
Scabies mites burrow beneath the skin and require a doctor's prescription; bed bugs are visible insects managed by treating the home.
Bed bug bites, by contrast, tend to show up on skin left uncovered while you sleep, and the insect itself is visible. You can often find the bugs or their dark fecal spots in mattress seams and cracks near the bed, which is a sign scabies never leaves. To see how bed bug marks typically present, compare what bed bug bites look like and read more on bed bug bite symptoms.
Scabies Is a Medical Condition, Bed Bugs Are a Pest Problem
This is the heart of the comparison. Scabies is a medical condition: the mites live in human skin, the infestation is contagious, and it typically requires a prescription treatment from a doctor, with close contacts often treated at the same time. It does not clear on its own. You treat the person, not the room.
Bed bugs are a pest problem: the insects live in your surroundings and are managed by treating the home, bedding, and belongings, not your skin. If you can find physical evidence of the bugs, you are dealing with a pest issue rather than a skin condition. For help spotting that evidence, see bed bug bites.
When to See a Doctor
Scabies is a medical condition that needs professional care, and this page is not a diagnosis. See a doctor if any of the following apply:
You have an intense, persistent itch, especially in skin folds, but cannot find any bug
The itch is worse at night, or others in your household have it too
You see thin burrow lines, a spreading rash, or signs of skin infection
A doctor can confirm whether it is scabies and prescribe the right treatment. Do not try to self-treat a suspected skin condition.
Frequently Asked Questions
How do you tell scabies from bed bug bites?
Scabies is caused by microscopic mites that burrow into the skin, so you cannot see the mite itself, and the itchy rash often appears in skin folds such as between the fingers, on the wrists, and around the waist, sometimes with thin burrow lines. Bed bugs are visible insects that live in the environment rather than on you, so bites tend to appear on exposed skin and you can often find physical signs like the bugs or dark spots. Because scabies is a medical condition, see a doctor for diagnosis and treatment if you suspect it.
Is scabies contagious like bed bugs?
Scabies spreads from person to person, usually through prolonged close skin-to-skin contact, because the mites live in human skin. Bed bugs are not contagious and are not known to transmit disease to people; they live in the environment and move between hosts and hiding places rather than passing directly from one person to another. This difference is one reason scabies needs medical care while bed bugs are a pest-control problem.
Can you see scabies mites or bed bugs?
You cannot see scabies mites with the naked eye because they are microscopic and burrow beneath the skin surface. Bed bugs, by contrast, are visible insects, and you can often find them or their signs, such as dark fecal spots, in mattress seams and cracks near the bed. If you cannot find any bug at all but have an intense, persistent itch in skin folds, that points toward scabies rather than bed bugs.
Where do scabies and bed bug bites appear on the body?
Scabies commonly affects skin folds and warm areas such as the webbing between the fingers, the wrists, the elbows, and around the waist, and the itch is often most intense at night. Bed bug bites more often appear on skin left uncovered while you sleep. Location can overlap, so it is not proof on its own, but scabies favoring the finger webs and wrists is a useful clue to seek a medical diagnosis.
Does scabies need prescription treatment?
Yes. Scabies is a medical condition that typically requires a prescription treatment applied to the skin, and close contacts often need treatment at the same time to prevent reinfestation. It does not clear on its own. Bed bugs, on the other hand, are managed by treating the home and belongings, not the person. If you think you have scabies, see a doctor rather than trying to treat it yourself.
Can bed bugs cause scabies?
No. Bed bugs and scabies are unrelated. Scabies is caused by a specific mite that burrows into human skin and spreads through close contact between people. Bed bugs are separate insects that feed and then hide in the environment, and they do not cause scabies. It is possible to have skin reactions from either, so if the itch is intense and persistent, especially in skin folds, see a doctor to find out which one you are dealing with.
Sources
CDC — Scabies (scabies is caused by microscopic mites that burrow into the skin, spreads through close contact, and causes intense itching, often worse at night).
American Academy of Dermatology — Scabies (rash in skin folds such as finger webs and wrists, burrow lines, and the need for prescription treatment from a doctor).
CDC — Bed bugs (bed bugs are visible insects that live in the environment and are not known to transmit disease to people).
