3 doctors weighed in:

What bugs leave four puncture wounds in a line?

3 doctors weighed in
Dr. Heidi Fowler
Psychiatry
2 doctors agree

In brief: One possibility is a

Bed bug. A telltale sign is a linear track of lesions from sequential feedings but it doesn't always occur.

In brief: One possibility is a

Bed bug. A telltale sign is a linear track of lesions from sequential feedings but it doesn't always occur.
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