How Big Are Bed Bug Blood Stains?

by | May 22, 2023 | 0 comments

How Big Are Bed Bug Blood Stains?

Bed bugs are pests that can leave telltale signs of their presence, one of them being blood stains. But, how big are bed bug blood stains? In this guide, we’ll help you understand this aspect to better identify a bed bug infestation. We’ll also highlight the importance of engaging a professional bed bug exterminator and how to handle scenarios like a friend with bed bugs sitting in your car. Additionally, we’ll delve into what bed bug eggs look like on a mattress and other signs of an infestation like the color of bed bug casings.

Understanding Bed Bug Blood Stains

Bed bug blood stains are a result of the insects’ feeding activity. When bed bugs bite, they pierce the skin and feed on blood. After feeding, they may leave behind small traces of blood on surfaces such as bedding, mattresses, furniture, or walls. These blood stains can serve as evidence of a bed bug infestation and help in identifying the extent of the problem.

Appearance and Characteristics of Bed Bug Blood Stains

Size and Shape

Bed bug blood stains can vary in size and shape, depending on various factors such as the amount of blood ingested, the duration of feeding, and the surface material. In general, they are small and round, often resembling tiny dots or droplets. However, the size can range from a pinprick to larger stains, especially if multiple bugs have fed in the same area.

Color and Freshness

Fresh bed bug blood stains are typically dark red or rust-colored. As time passes, these stains may oxidize and darken, taking on a brownish hue. However, it’s essential to note that the appearance and color of bed bug blood stains can be influenced by factors such as the type of fabric or material they are on, exposure to light, and the cleaning attempts made.

Location and Distribution

Bed bug blood stains are commonly found in areas where the bugs reside or feed, such as mattresses, bedding, couches, or chairs. The stains may appear in clusters or be scattered, depending on the movement and feeding patterns of the bed bugs. Checking areas near sleeping or resting places is crucial when looking for these stains.

Did you know?

Bed bugs can sense the presence of other bed bugs through pheromones, which helps them aggregate and find suitable hiding places.

Factors Affecting the Size of Bed Bug Blood Stains

Several factors can influence the size and appearance of bed bug blood stains. Understanding these factors can provide insights into the infestation and help in effective detection and control measures.

Feeding Habits of Bed Bugs

Bed bugs are nocturnal insects that feed on human or animal blood at night. Their feeding duration can vary, with some bugs taking quick, shallow bites, while others may feed for more extended periods. The duration and intensity of feeding may influence the size of the blood stains left behind.

Blood Type and Amount

Bed bugs can feed on various blood types, and the amount of blood they ingest can affect the size of the resulting stains. Larger stains may be observed if the bugs have fed on a rich blood source or if multiple bugs have fed in the same area.

Surface Material and Absorbency

How to Identify and Clean Bed Bug Stains

The absorbency of the surface material can also impact the appearance of bed bug blood stains. Highly absorbent materials like fabric or upholstery may result in more significant and widespread stains, while less absorbent surfaces like plastic or metal may produce smaller and more concentrated stains.

Detecting Bed Bug Blood Stains

Detecting bed bug blood stains is an essential step in confirming an infestation. Here are some methods to identify these stains:

Visual Inspection

Perform a thorough visual inspection of mattresses, sheets, pillowcases, furniture, and other areas where bed bugs are likely to hide. Look for small reddish-brown spots or stains that resemble dried blood. Pay close attention to crevices, seams, and areas near the sleeping or resting spots.

UV Light Detection

does uv light kill bed bugs

Using a UV or blacklight can help reveal bed bug blood stains that are not easily visible to the naked eye. Bed bug droppings, which may contain digested blood, can fluoresce under UV light, making it easier to detect their presence.

Using Bed Bug Detection Dogs

Dog Bed Bug Inspection

Specially trained bed bug detection dogs can be employed to sniff out infestations. These dogs are trained to identify the scent of live bed bugs, shed exoskeletons, and blood stains. Their keen sense of smell can be highly effective in locating bed bug activity, including blood stains.

Importance of Bed Bug Blood Stains

Bed bug blood stains serve various purposes in the context of an infestation. Understanding their significance can aid in prompt action and effective treatment.

Confirmation of Infestation

The presence of bed bug blood stains is a clear indication of an infestation. Finding these stains on bedding or furniture provides tangible evidence that bed bugs are present in the vicinity and should not be ignored.

Removing and Treating Bed Bug Blood Stains

Promptly addressing bed bug blood stains is crucial for both cleanliness and effective control measures. Here are some steps to remove and treat these stains:

Immediate Steps for Fresh Stains

For fresh stains, start by blotting the area gently with a clean cloth or to remove bed bug blood stains effectively. Use cold water and a laundry detergent specifically designed for removing stains. Pre-treat the stained area with the detergent, gently rubbing it into the fabric.

Allow the fabric to soak for a few minutes before washing it in the machine according to the recommended settings. Inspect the fabric after washing to ensure the stain has been completely removed. Repeat the process or consider professional dry cleaning for delicate fabrics if necessary.

Professional Bed Bug Treatment

bed bug exterminator vacuuming couch

While cleaning and treating blood stains is essential, addressing the underlying bed bug infestation is crucial. Bed bugs are notoriously difficult to eliminate without professional intervention.

Contacting a reputable pest control company with experience in bed bug extermination is highly recommended. These professionals will assess the extent of the infestation and employ appropriate treatment methods to eliminate the bugs effectively.

You can prevent their recurrence and protect your home from further infestations by eradicating the source of blood stains.

Prevention and Control

Preventing bed bug infestations is always preferable to dealing with the aftermath. Here are some preventive measures to consider:

Regular Cleaning and Vacuuming

Maintaining a clean and clutter-free environment can help deter bed bugs. Vacuum your home regularly, paying special attention to areas where bed bugs are known to hide, such as mattresses, box springs, furniture seams, and cracks. Dispose of the vacuum bag immediately after each use to prevent any potential reinfestation.

Encasing Mattresses and Pillows

mattress encasement

Protective encasements on mattresses, box springs, and pillows can be a physical barrier against bed bugs. These encasements are designed to be impenetrable to the bugs, preventing them from reaching the sleeping surface and hiding in crevices. Be sure to choose encasements labeled specifically for bed bug protection.

Professional Pest Inspections

Regular professional pest inspections can help detect bed bug infestations early on. Pest control professionals are trained to identify signs of bed bugs, including blood stains. By catching an infestation in its early stages, you can take swift action and minimize the potential damage and discomfort caused by these pests.


Knowing how big bed bug blood stains are can be crucial to identifying an infestation. However, there’s more to effective bed bug management, including understanding bed bug behavior, recognizing what bed bug shells look like, and knowing how long a bed bug can live without blood. Following treatment, it’s essential to know how to clean and what not to do to avoid reinfestation.


How do I identify bed bug stains?

Bed bug stains typically appear as small, dark spots on bedding or other surfaces. They are often reddish-brown or black in color and may resemble ink stains. Bed bug stains are caused by the bugs’ excrement or crushed bed bugs.

Do blood stains always mean bed bugs?

No, blood stains on bedding or other surfaces do not always indicate the presence of bed bugs. Blood stains can have various causes, such as cuts or injuries. However, if you consistently find blood stains on your bedding, it may be worth investigating further for the presence of bed bugs.

What are the little blood spots on my bed sheets?

Little blood spots on bed sheets could be an indication of bed bug activity. Bed bugs feed on blood and may leave behind small blood stains or smears as they move around or after feeding.

Does bed bug blood smear?

Yes, bed bug blood can smear if it is fresh or still wet. If you accidentally crush a bed bug that is engorged with blood, it may leave a smearing mark on surfaces like sheets, mattresses, or walls.

What do blood spots from bed bugs look like?

Blood spots from bed bugs are typically small and may appear as dark red or black spots. They can resemble small ink stains and are often found on bedding, mattresses, or nearby furniture.

Do bed bugs like clean sheets?

Bed bugs are attracted to humans and their blood, not specifically to dirty or clean sheets. They can infest both clean and dirty environments as long as there is a source of blood nearby. However, maintaining cleanliness and regularly washing bedding can help reduce the risk of bed bug infestations.

What instantly kills bed bugs?

There are several methods to instantly kill bed bugs, including:

  1. Heat treatment: Exposing bed bugs and infested items to high temperatures, typically above 120°F (49°C), can kill them.
  2. Steam treatment: Using steam on infested areas, such as mattresses, furniture, or carpets, can effectively kill bed bugs.
  3. Insecticide sprays: Certain insecticides are specifically formulated to kill bed bugs on contact.
  4. Vacuuming: Vacuuming infested areas can help remove live bed bugs and their eggs.
  5. Freezing: Exposing bed bugs to extremely low temperatures, typically below 0°F (-18°C), can also be lethal.

What kills bed bugs on bedding?

To kill bed bugs on bedding, you can try the following:

  1. Washing and drying: Wash your bedding in hot water (at least 120°F/49°C) and dry it on high heat to kill bed bugs and their eggs.
  2. Steam cleaning: Using a steam cleaner on your mattress, pillows, and other bedding items can help eliminate bed bugs.
  3. Encasements: Enclosing your mattress and box spring in bed bug-proof encasements can trap any existing bed bugs and prevent new infestations.

Can bed bugs survive a washing machine?

Bed bugs cannot survive in a washing machine if the water temperature is high enough and the washing cycle is long enough. Washing your bedding in hot water (at least 120°F/49°C) and drying it on high heat should effectively kill bed bugs and their eggs. However, it’s important to follow proper cleaning procedures and consider additional treatments if necessary.

Duane Cepeda is a highly skilled and experienced bed bug exterminator with a passion for creating pest-free living spaces. With a keen eye for detail and a thorough understanding of bed bug behavior, Duane is dedicated to providing effective and tailored solutions to help clients rid their homes of these persistent pests. Trusted by many, Duane Cepeda is committed to delivering top-notch pest control services that ensure peace of mind and a good night’s sleep for his customers.


Submit a Comment

Your email address will not be published. Required fields are marked *