1. Getting bed bug bites may be the first clue that you have a bed bug problem. These bites may be mistaken for the bites of mosquitos, flies or other insects. If you notice that you have new bites when you wake up in the morning, it could indicate that you have bed bugs or were exposed to them in the past couple of weeks.
***Be aware that many people show no reaction to bed bugs bites at all, and that two people sleeping in the same bed can have entirely different reactions to being bitten.
2. Fecal spots on the sheets, bedding, mattresses or boxspring. Bed bugs often defecate on bedding when they come out to feed or while they are hiding in the seams of your mattress or other harborage. These spots look like tarry dots made by a fine tip magic marker.
3. Small spots of blood on the sheets could be a sign of bed bugs. You many have crushed a bed bug in your sleep, leaving a small blood mark.
4. Finding bed bugs of various sized and colors (see photos) eggs, cast exoskeletans and fecal spots on your mattress, boxspring, sheets, behind your headboard and along joints in your bedside furniture. Bed bugs like hiding spots where they are unlikely to be disturbed, away from light and drafts.
5. A sickly sweet odor (like coriander, rotten rasberries, almonds) may be noticable in heavily infestated areas.