Editorial review: October 17, 2026 · Educational guide · Basics
In brief: Eggs, nymphs and adults: why treatment follow-up matters. We focus on what you can verify and which steps are safe and realistic.
From egg to adult
A bed bug develops from an egg through five immature stages, often called nymphs, before becoming an adult. Each nymph stage generally requires a blood meal to molt. How quickly the process happens depends on temperature, feeding and other conditions.
Why eggs complicate treatment
Eggs are very small and may be deposited in protected cracks and seams. Some control methods do not reach every egg. This is one reason monitoring and follow-up treatment can matter long after the first visible insects disappear.
How bed bugs move
Bed bugs primarily crawl. They can hitchhike in baggage, clothing and furniture, but they do not jump or fly. Movement between adjacent rooms or units is possible, which matters in apartment buildings.
How long can they survive?
Bed bugs can survive for extended periods without feeding, with survival varying substantially by conditions and life stage. Leaving a room empty for a short period is not a reliable elimination strategy.
What the biology means for you
A disciplined, multi-step approach beats a one-day purge. Find the hiding places, treat or isolate items appropriately, monitor results and confirm that the activity has stopped.