Bed bugs start to become a problem when they become hungry for blood, though frankly they will never be a particularly desirable resident in your house. They typically stay in their homes in between meals and are only forced to go out if they are starving. The warmth of a nearby body is what attracts them they can detect a food source up to approximately 5-10cm away.
Bed bugs use their highly developed mouthparts to bite and suck blood from the skin of an unsuspecting person. Engorgement time can last as long as seven minutes or as short as one minute. An adult bed bug can absorb around seven times of its own body weight in blood. The bed bug immediately retreats to its hiding place after feasting and then lays eggs again.
A person will only realize that he has been bitten by a bed bug once he discovers the large wheals in the affected part of the body. These wheals eventually develop into a tiny read mark that will stay for at least two to three days.
Bed bug bites can also be distinguished by the orderly way the wheals are formed, unlike mosquito bites that have a random pattern. It is always advised that the affected area should never be scratched to avoid infection and immediately washed with soap and water.
Bed bugs do prefer any part of the body that has good blood flow so, sorry to say, the reproductive organs will always be included in their list of target spots.
You can reed more @ BedBugle.com