Bed Bug Fecal Spots

Mattress seams, bed frames, headboards, and cracks or crevices near sleeping areas.

Human and animal blood (the spots are digested blood).

Bed bugs are nocturnal parasites that hide during the day and emerge at night to feed. They leave these dark, ink-like spots of excrement on bedding or furniture after feeding.

Indicates an active infestation. While not known to transmit diseases, they cause itchy welts, allergic reactions, and significant psychological distress.