Linked from
The 11 pages that link to Bed bug, each with the reason it gives.
HemipteraBroader topic: This blood-feeding true bug shows that not all hemipterans feed on plants.
ScabiesCompared with: Bed bug bites can cause itchy marks, but the insects do not burrow into skin.
TickCompared with: Bed bugs feed on hosts but are insects and do not remain attached like ticks.
Piercing-sucking mouthpartsBroader topic: Its specialized beak pierces skin and takes a blood meal.
FleaCompared with: Bed bugs feed on blood like fleas but do not jump or live primarily in fur.
PediculosisCompared with: Bed bugs bite humans but do not live on the body or cause pediculosis.