Diseases Caused by Common Household Pests

Pests in a property can be a menace. They are not only a nuisance, but they are the cause of several diseases that can be fatal if not treated on time. Though we find, some pests common in our house, their effects can be dangerous to our health. It is important to remain updated about the health hazards associated with pest infestation so that you remain cautious and take necessary actions to eliminate these pesky pests from your premises as soon as possible. In this article, we will talk about various diseases caused by common household pests.

Before understanding the diseases caused by pests, let us know the common household pests in our house.

  • Cockroaches
  • Rats or Rodents
  • Mosquitoes
  • Flies
  • Bed Bugs
  • Ants
  • Termites
  • Fleas

Diseases caused by pests can be moderate to fatal. The important thing is that we should know how these insects can harm us. With the right information we can protect ourselves and our families from these diseases. Here are some diseases caused by pests commonly present in every household.

Table of Contents


Dysentery is caused by bacterial or parasitic infections. It is a gastroenteritis problem that results in diarrhea. The symptoms may include stomach cramps, nausea, vomiting, high fever, blood and mucus in the stool. These bacteria are spread through cockroaches. As cockroaches travel in filthy places, they carry bacteria with them. If you consume contaminated food and drink, you will be affected. These bacteria are common in areas with poor hygiene.



Dengue virus is transmitted in humans through the bite of a mosquito called Aedes. It breeds in clean water and is more prominent during monsoons. The symptoms may include high fever, joint pain, headache, nausea and vomiting, swollen glands, and rashes. Dengue can prove to be fatal if neglected or not treated on time. You must take measures to get rid of mosquitoes to save yourself from dengue. Make sure there is no standing water in and around your house.


Salmonellosis is an infection caused by bacteria called salmonella. Cockroaches crawl in dirty places and accumulate salmonella which remains in their digestive system for a month. They contaminate your food through their droppings and vomit. When an individual consumes contaminated food, they get affected by it. The symptoms are diarrhea, fever, abdominal pain, chills and headaches. Salmonella usually goes on its own within a few days.


Cockroaches can trigger asthma symptoms and respiratory infections. The saliva, feces, and shredding body parts of cockroaches can trigger these symptoms. These allergens act like dust mites aggravating symptoms when kicked up in the air. If not taken care of, these symptoms can become chronic. You must take important measures to get rid of cockroaches in your home. If you have a severe termite infestation in your home, it can also aggravate asthmatic symptoms.


Chikungunya is also a mosquito-borne viral infection accompanied by fever and severe joint pain. This virus is transmitted by the bite of an infected mosquito, mainly Aedes aegypti. In most of the cases, the symptoms may go away in 1-2 weeks. However, some may get joint and muscle pain for months and even years. Keep your home mosquito-free by implementing mosquito control measures.


Malaria is a life-threatening disease caused by the bite of an infected mosquito. The symptoms may include fever, flu-like illness accompanied by chills, vomiting, nausea, and headache. Malaria may cause anemia and jaundice due to the loss of red blood cells. The treatment depends on the type of malaria parasite you are infected and the severity of the symptoms.

Skin Allergies

Mosquitoes, bed bugs, fleas, and certain flies can cause skin allergies in humans. The symptoms include rashes, redness, swelling, redness, and stinging accompanied by pain. These rashes usually go away within a few days. However, in some cases, you may have to see a doctor if the symptom worsens.


Cholera is an acute diarrhea caused by contaminated food or water. The symptoms of cholera are dysentery and stomach cramps. Domestic flies can cause cholera as they can discharge bacteria for a long time into the external environment and contaminate food.


Hantavirus is caused by rodents and can cause varied diseases syndrome. Early symptoms of hantavirus are fatigue, fever, and muscle aches. Some people also develop symptoms like headaches, nausea, diarrhea, abdominal pain, and vomiting. Hantavirus typically results from mice urine and feces and can be fatal if left undiagnosed. Take necessary measures to get rid of rats in your house.


It is crucial to prevent exposure to these pests to protect yourself and your family from the above-mentioned diseases. Practicing good hygiene and taking important steps to prevent these common household pests from entering your home.  If you are suffering from severe infestations, hire a professional pest control in Bangalore that will not only eliminate ongoing infestations but also implement methods to prevent future infestations.


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