When bedbugs infest a bed, they often leave a stain on the sheets or walls. These stains are caused by the excrement, which is brown or rusty red in color. The bugs usually leave only small stains, but they can spread to cover a larger area. The stains will eventually fade to a lighter shade of brown.
If you find these stains, you should take immediate action. This may be an indication of an infestation. You may see small stains on the surface of your mattress or box spring. You may also notice small stains on the upholstered furniture. These stains are often red or a combination of red and brown, and they indicate that bedbugs are living in your home.
Bedbugs can also leave black stains on your sheets and pillowcases. These stains are caused by the excrement of bedbugs, which has a foul odor. They may also leave stains in the stitching and seams of your bed or couch. If you find them, you should contact pest control professionals for an inspection.
If the stain is stubborn, you can use hydrogen peroxide and ammonia in a spray bottle to clean it. This mixture can get rid of the stains, but be sure to only use it for about 10 minutes. Repeated cleaning can cause the fabric to fade and deform. You should also make sure your mattress has good airflow in order to avoid a musty odor and minimize drying time.