Several bites or a chronic infestation may lead to Anemia, as every bite removes a small amount of blood from the system. Serious infestation can cause stress and anxiety in those experiencing them. These can lead to insomnia and, rarely, a psychological condition in which an individual believes he is carrying and can 'feel' parasites on him when this is not actually the case.
Learn to identify ticks, poisonous spiders, fleas, chiggers, and other bugs in this WebMD slideshow. See what their bites and stings look like -- and how to find relief.
They appear as small, red bumps with a type of ring, or halo, around the center. Unlike mosquito bites, flea bites are generally uniform in size and they aren't usually very big. Like bed bugs, fleas also often leave bites in a pattern. Usually, these bites are in small groups of three or four.
A bed bug feeds about once a week. If you're getting only one or two bites a week, odds are that even IF it's bed bugs AND it's in your home, you only have 1-2 bugs. Such low level infestations are difficult to detect. Conversely, in such situations, your risk of spread to visitors, friends, etc. is also lower.
Although some bites may appear alone, most bites occur in a row of three to five bites (termed "breakfast, lunch, and dinner") or in a cluster of red bumps (a rash called bedbug dermatitis). The bites often appear in a zig-zag formation, but may appear in a straight line if the bugs bite you in the morning.
They feed on their hosts by injecting a small amount of saliva into the host's skin. Also, you can contact scars and skin infections from scratching the bites from bed bugs. Hard to See and Kill; It is almost difficult for the normal human eye to see bed bugs.