Bed Bug Symptoms

Symptoms
By Mayo Clinic staff

Bedbug bites
Signs and symptoms of bedbug bites will usually affect only the surface of your skin, revealing themselves as small itchy red bumps known as papules or wheals. You might find the lesions in a linear or clustered fashion, indicative of repeated feedings by a single bedbug.

Some people may develop allergic reactions or larger skin reactions such as:

Large, itchy wheals up to 8 inches (20 centimeters) across
Blister-like skin inflammations
Groups of small, swollen sacs of pus
Skin rashes similar to hives