There are 100,000 different species of flies that live all around the world. Generally, most flies all have the same body features: a small body, a smaller head, and a large set of wings. Not only are these insects annoying, but they also carry bacteria and other pathogens that contribute to serious diseases like typhoid, tuberculosis, cholera, and dysentery.
One of the most common types of flies that appear in homes are house flies. The presence of a large amount of flies in your home usually indicates that there may be an area of your house that has exposed garbage or food. They are commonly a dull grey colour and are usually 5-7 mm long. A female housefly will usually deposit more than 100 eggs at a time, often laying 600-1000 eggs throughout their whole life.