Bed bugs are notoriously difficult to detect, especially in the early stages of an infestation. These pests are experts at hiding in the tiniest of spaces, making it challenging to confirm their presence until the problem becomes severe. However, there are several warning signs you can look out for. One of the most common indicators is waking up with small, itchy, red bites in a line or cluster on your skin. Unlike mosquito bites, bed bug bites often appear in a linear or zigzag pattern. Another sign is the presence of tiny rust-colored stains on your sheets or mattress, which are caused by bed bugs being crushed during the night. You might also notice dark spots, about the size of a pen dot, which are bed bug excrement. In more advanced infestations, you may find actual bed bugs or their shed skins in the seams of your mattress, behind headboards, or in the crevices of furniture. If you suspect bed bugs, it's crucial to act quickly. Ignoring the problem can lead to a more widespread infestation, making eradication more difficult and costly.