Flies in the house can be a nuisance and can be a sign of a larger problem. These insects are attracted to food and moisture, which is why they are often found in kitchens and bathrooms. However, they can also come from other sources such as garbage or sewage. Understanding where the flies are coming from is the first step in getting rid of them.One common source of house flies is garbage. If you have a garbage can inside or outside of your home that is not sealed properly, it can attract flies. These insects are drawn to the smell of rotting food and will lay their eggs in the garbage. When the eggs hatch, the larvae will feed on the garbage and can quickly turn into adult flies. To prevent this, it is important to keep garbage cans sealed and to dispose of garbage regularly.Another source of flies in the house can be sewage. Flies can breed in sewers and septic systems, and can make their way into the house through drains and plumbing. If you have a problem with flies in the bathroom or kitchen, it may be a sign of a blockage or leak in your plumbing. In this case, it is important to call a plumber to fix the issue and to keep an eye out for any signs of flies in the bathroom or kitchen.Another common source of house flies is the outdoors, specifically around the perimeter of your home. Flies can enter through open windows and doors, or through cracks and crevices in the walls and foundation. To prevent this, it is important to make sure all windows and doors are closed and to check for any cracks or gaps that may need to be sealed.Finally, if you have a garden or compost pile in your yard, it can also attract flies. These insects are drawn to the smell of rotting vegetation and will lay their eggs in the soil. To prevent this, it is important to keep the garden and compost pile clean and to dispose of any rotting vegetation regularly.In conclusion, flies in the house can come from a variety of sources such as garbage, sewage, outdoors and even gardens and compost piles. Identifying the source of the flies is important in order to effectively eliminate them. Proper disposal of garbage, regular cleaning of the bathroom and kitchen, fixing any plumbing issues and sealing any cracks or gaps in the walls and foundation are some of the ways to prevent flies from entering the house. Additionally, keeping your garden and compost pile clean can also prevent flies from breeding around the perimeter of your house.