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What is biting me if it not bed bugs?

If you wake up with mysterious bites or rashes, you may immediately assume you have bed bugs. However, there are many other insects and bugs that can bite humans and cause similar skin reactions. Ruling out what is not biting you is just as important as identifying the true culprit. This article will go over the most common non-bed bug biters and how to tell them apart from bed bugs. We will also discuss why proper identification is key and when to seek medical care for bug bites.

What Are Bed Bugs?

Bed bugs are small, flat, oval-shaped insects that feed solely on blood. They are brown to reddish-brown in color, have no wings, and are about the size of an apple seed. Bed bugs only come out at night to feed, typically on exposed skin while people sleep. Some key signs of bed bugs include:

  • Groups of small, red, itchy bites often in a line or cluster
  • Blood stains on sheets from crushed bugs
  • Black or brown spots from bug droppings on mattresses and furniture
  • A musty, sweet odor
  • Seeing live bugs crawling on beds or furniture

Bed bug bites usually occur on exposed areas like the face, neck, arms, and hands. The bites themselves look like slightly swollen and red mosquito bites. Scratching the bites can cause them to become infected. Bed bugs feed for about 5-10 minutes and then crawl back into hiding.

Other Common Biting Pests

If you do not find any evidence of bed bugs after thoroughly checking your bed, here are some other likely biting suspects:


Fleas are tiny wingless insects that feed on the blood of humans and animals. They can come into homes on pets or wild animals. Signs of fleas include:

– Small red bumps, often around the ankles and legs
– Intense itching of the bite areas
– Flea dirt (tiny black specks from flea feces) on furniture or pet beds
– Seeing live fleas jumping on surfaces or pets

Flea bites are typically more spread out and occur lower on the body compared to bed bug bites. The bites also tend to be much itchier. Topical anti-itch creams can help reduce itching from flea bites. Treating infested pets and thoroughly cleaning your home will eliminate a flea issue.


Mosquitoes are flying insects that bite to extract blood for nutrients and egg production. Female mosquitoes are the biters looking for blood meals. Signs of mosquito bites include:

– A raised, round pink or red bump where bitten
– A small, hard, white to clear bump in the center of the bite
– Intense itching that can last for days
– Bites occurring after spending time outside or in wooded areas

Mosquito bites are usually found on exposed skin and will be more spread out than bed bug bites. Use bug repellent when going outside, install window screens, remove standing water sources, and treat yards to control mosquitoes.


Mites are microscopic insects that can inhabit homes and bite humans. The most common mites that bite are scabies mites, bird mites, rodent mites, and dust mites. Mite bites often cause:

– Tiny red bumps or blisters, sometimes arranged in lines
– Severe itching, especially at night
– Rashes on wrists, elbow creases, armpits, or groin

Bird and rodent mites stray from nesting areas when the host animal dies or leaves. Scabies mites burrow under the skin and cause a contagious condition. Dust mites generally do not bite but can cause allergic reactions. Contact pest control and thoroughly clean if mites are present.


Lice are tiny wingless parasitic insects that live on blood. The three main types of lice that infest humans are head, body, and pubic lice. Lice bites often look like:

– Small red bumps or irritation on the scalp, body, or groin
– Itching where lice are present
– Visible nits (lice eggs) stuck to hair shafts
– Seeing live lice on hair or clothing

Lice bites are very itchy but usually do not spread disease. Treat infestations with special anti-lice shampoos, combs, and medications. Wash clothing and bedding in hot water to kill any lingering lice or eggs.

Kissing bugs

Kissing bugs are blood-feeding insects that can be found in the southern United States and parts of Central and South America. Some signs of kissing bug bites are:

– Swollen red marks, sometimes with a central spot
– Intense pain, irritation, and itching
– Blisters or skin lesions at the bite site

Kissing bugs come out at night and typically bite exposed skin around the mouth or eyes. Some species can transmit parasites that cause Chagas disease. If you suspect kissing bugs, contact pest control for treatment and removal.


Ticks are small parasitic organisms that attach to the skin and feed on blood. They prefer warm crevices on the body and are common in wooded, tall grass areas. Tick bites can look like:

– Small red bumps or a localized rash
– A small puncture wound where attached
– Foreign body sensation where the tick latched on
– Ring-shaped rash patterns over days to weeks

Tick bites are not usually itchy initially but some people may develop itching and allergic reactions. Ticks can transmit several illnesses through bites. Carefully remove any attached ticks and watch for potential infection symptoms.

Spider bites

Most spiders do not bite humans but some common ones like brown recluse spiders and black widow spiders do bite. Spider bites typically cause:

– Mild stinging pain similar to a bee sting
– Redness, swelling and itching around the bite
– Blistering, ulceration, or necrosis with venomous spiders

Spider bites will usually form a inflamed, irritated bump with a central puncture mark. Only a few spider species in the U.S. can cause serious reactions. Seek medical care if you suspect a venomous spider bite.

Why Proper Identification Matters

There are several important reasons why you need to identify what is actually biting you:

  • Bed bugs require very different treatment than other bugs. You need to target bed bug hiding places and adhere to prevention tips to stop infestations.
  • Some pests like fleas, lice, and mites need treatments applied directly to people, pets, clothing and bedding versus just environmental pest control.
  • Mosquitoes, ticks, and some spiders can transmit diseases through bites so identifying them has health implications.
  • Effective bite treatment relies on knowing what caused the bite. Reactions can vary depending on the insect saliva introduced.
  • Prevention tactics are bug-specific. For instance, pest-proofing bedrooms would target bed bugs while outdoor spray would combat mosquitoes.

Taking the time to thoroughly evaluate your living space and the bites themselves will help you pinpoint the pest. Catching an infestation early also makes elimination easier before populations grow.

When to Seek Medical Care

Most mild bug bites and stings can be treated at home with basic first aid and anti-itch creams. See a doctor for any of the following reactions:

  • Intense swelling, redness, pain, or itching at the bite site
  • Blisters, hives, or large rashes spreading from the bite
  • Flu-like symptoms such as fever, chills, dizziness, or headaches after a bite
  • Pus, oozing, or discoloration around the bite indicating infection
  • Facial swelling affecting breathing and swallowing
  • Known venomous spider or snake bite

Seek immediate medical care if you experience any signs of a severe allergic reaction to a bite including difficulty breathing, chest tightness, wheezing, or fainting. Let a doctor examine any bite that becomes severely painful or infected looking. Multiple painful bites with systemic illness also warrant medical evaluation.

Preventing Bites

You can reduce bug bites by taking some basic precautions:

  • Inspect for signs of bed bugs, fleas, ticks, or mites if bites occur frequently in your home.
  • Install window and door screens and seal cracks to prevent insect entry.
  • Use bed bug mattress encasements and interceptor traps to monitor infestations.
  • Treat yards and landscaping to control mosquito breeding habitats.
  • Remove trash, clutter, and food debris regularly.
  • Apply insect repellent when spending time outdoors.
  • Treat pets routinely to control fleas and ticks.
  • Examine yourself and children for ticks after being outside.
  • Wash and dry clothes at high heat to kill any lice or mites.

Being observant and proactive will help deter many biting pests. Targeted pest control measures can treat more stubborn infestations if they arise.


Identifying what is biting you involves carefully analyzing when and where bites occur, examining the bite marks, and looking for signs of specific pests. Common non-bed bug biters include fleas, mosquitoes, mites, lice, ticks, spiders, and kissing bugs. Each causes slightly different bite reactions and requires unique removal tactics. Properly diagnosing bite causes is crucial for health reasons, targeted treatment, and prevention. Seek medical care for any severe reactions or symptoms of infection from bug bites. Being vigilant and controlling pest populations will help resolve bite mysteries.