German cockroaches are believed to have originated in Southeast Asia but have since spread worldwide, predominantly through human activities. They are one of the most common and adaptable species of cockroaches found in human dwellings, thriving in environments that provide warmth, moisture, and food sources, such as residential and commercial kitchens, bathrooms, and other areas where food is stored or prepared. Their distribution worldwide is primarily attributed to their ability to stow away in personal belongings, shipping containers, and commercial goods. This species has demonstrated remarkable adaptability to various climates, although they prefer indoor environments that mirror their tropical origins’ warm, humid conditions. The spread of German cockroaches has been facilitated by global trade and travel, making them a pervasive pest problem in urban and suburban areas across continents. Their presence is not determined by the cleanliness of a home or facility but rather by the availability of resources they need to survive.