When you are bitten by a bed bug, you may wonder how they feed. These insects prefer to feed at night and are active at exposed areas. The bites are usually painless during the initial attack. However, over time, their bites may cause red and swollen skin. These bugs do not transmit disease, but you should be careful when they bite.
Bedbugs are flat, wingless insects that feed on mammalian blood. Throughout their lifetimes, they have evolved to become highly specialised in their job. They have needle-like mandibles, hollow tubes, and a pump to release saliva into the host’s blood. They also have an expanded abdomen, and these features are the result of natural selection.
Upon discovery of an infestation, you should inspect your bed for the presence of bed bugs. These bugs usually live in areas of human contact, such as mattresses and bed frames. To look for bed bugs, remove your mattress and look behind the headboard, underneath your bed, and in upholstery crevices and carpeting. You should also check for bed bug shells, which are the translucent bodies of the insects. They also leave their excrement behind, which looks like tiny red or black mounds.
Bedbug bites can be painful, and some people are allergic to them. Those with a weak immune system, children, and the elderly are particularly susceptible. This is especially true if they are bed-bound.