Bed bugs have a flat, oval shaped body with no wings and grow to the size of an apple seed. They are a shiny reddish brown normally, but become swollen and dark brown after feeding. There is three stages in a bed bugs life cycle. In the egg stage, they look small and white like a tiny piece of rice. In the nymph stage, they are very tiny replicas of their full developed adult counterparts. Nymph take weeks or even months to fully develop depending on their environments temperature and the ability to feed properly. Bed bugs have five immature nymph life stages. They must molt six times before becoming fertile adults. They discard their outer exoskeleton, which is a clear empty exoskeletons of the bugs themselves. A fully developed bed bug is still only the size of an apple seed.