What happens if you leave a dead rat?

Author: Zoila Gislason Jr.  |  Last update: Wednesday, July 23, 2025

The smell of a dead rat can be harmful to a person's health due to the toxic gases and microscopic compounds of the dead animal that are constantly being released into the indoor air. Since most homes are not consistently ventilated, the gases permeate into the respiratory tract and can potentially cause illness.

How long can you leave a dead rat?

On average, a rat takes roughly 2-3 weeks to decompose; however, lower temperatures will increase this time period significantly. Once the body has decomposed, the smell won't instantly leave your home. Instead, the foul smell will still be lingering in your home roughly two weeks later.

Is it okay to leave a dead rat in the wall?

Leaving a dead rat in your wall is not advisable. It can lead to unpleasant odors as the body decomposes, attract other pests such as insects or scavenger animals, and potentially pose health risks due to the spread of bacteria and diseases. It's best to remove the dead rat as soon as possible to avoid these issues.

Can a dead rat smell harm you?

A poison would not contain a pathogen; it would contain a poison. Live rats carry pathogens which are potentially harmful to humans. The smell of a dead rat, while certainly unpleasant, is not toxic and will go away as the rat decomposes and dries up (fortunately a fairly quick process).

Will leaving a dead rat deter other rats?

Rats will absolutely come to feast on their fallen brethren so if you leave it there, surround it with more sticky traps, snap traps, or other rat catching devices.

Homemade Rat Poison: Get Rid of Mice in One Hour with Baking Soda and Cheese!

Should I remove dead rat?

Is it safe to remove dead rats on my own? Handling dead rats can be hazardous to your health due to the risk of disease transmission. It is highly recommended that you hire a professional dead rat removal service like PGH Pest Prevention to ensure safe and effective removal.

Does 1 rat mean more?

Even a single rat is enough to make most people shudder, but the truth is that if you have rats, you are unlikely to only have one. Rats are clever creatures that can squeeze into the tiniest of gaps, and once they have made themselves at home, they will breed.

How to dispose of a dead rat?

put the sealed plastic bag containing the carcass into another plastic bag. Seal the outer plastic bag. Dispose of it in a dustbin with cover or at a nearby refuse collection point. To ensure personal and environmental hygiene, wear plastic gloves (and surgical mask, if necessary) before handling dead rodents.

How long does it take for a dead rat to get maggots?

The female lays her eggs on or near a decomposing animal, and the eggs hatch within 8-20 hours into larvae, also known as maggots. Maggots are legless and worm-like, with a moist, translucent appearance.

What happens if I touch a dead rat?

Diseases Directly Transmitted by Rats

Individuals may be at increased risk of Leptospirosis infections if they work outdoors or with animals. Rat-bite Fever: This disease may be transmitted through a bite, scratch or contact with a dead rat.

What to do if you find a dead rat?

Place the dead rats in a plastic bag, including their nesting materials, droppings and foods. Seal the plastic bag tightly and do not press the plastic bag to expel the air inside, due to many bacteria or germs that rats might carry.

Do rats mourn their dead?

Grieving in Rats

Rats can experience grief after the death of a companion just as humans can. Although rats may not have the intellectual ability to rationalize such a loss, it is clear that they recognize their companion is gone and they can show many of the same physical manifestations that we feel.

How long after a rat dies does it start to smell?

HOW LONG DOES IT TAKE FOR A DEAD RAT TO START SMELLING? Somewhere between three and five days.? It also depends on some external conditions such as the humidity and temperature in the place where the rat has died. If it is hotter, the process will be sped up and it will start smelling in no time.

Can I leave a dead rat in the wall?

When rats die in the walls of a house, this will usually mean the only way to remove the scent is to tear into the walls to remove the corpse(s). This should be done with the upmost care and once the decaying animal has been removed, it should be placed into a sealable bag for disposal.

Is it okay to pick up a dead rat?

Handling a dead rat can expose you to harmful pathogens. To protect your health, contacting a professional dead rodent removal service is strongly recommended.

Will rats move on if there is no food?

Rats are also known to adapt to certain environmental conditions. These pesky creatures can survive on little food and water. This means that even if your house does not provide enough food, they will still squeeze through openings to look for food and return to their nests.

Is breathing in dead rat smell harmful?

If you've ever faced the unmistakable stench of a dead rat in your home, you know how quickly it can become a health hazard. The lingering smell isn't just unpleasant—it can carry harmful bacteria that could impact your well-being.

Can a dead rat in the wall make you sick?

Dead Rats Carry Diseases. One of the biggest dangers of dead rats is the fact that they can carry diseases. Rat-borne illnesses are a serious health hazard, and they can cause everything from mild discomfort to death.

What are the stages of a dead rat?

Stages of Dead Rat Decomposition
  • Fresh: This stage occurs within the first 12-36 hours after death. ...
  • Bloating: This stage occurs within the first 24-48 hours after death. ...
  • Active Decay: This stage occurs within the first 3-5 days after death. ...
  • Advanced Decay: This stage occurs within the first 1-2 weeks after death.

Are dead rats hazardous?

Dead and decomposing rodents are a serious health hazard for you, your family, and any pets you may have. The greatest risk comes from the parasites that the carcasses are hosting, fleas and ticks in particular. Dead rats in your house or garden pose significant health risks that should not be underestimated.

How do you clean after finding a dead rat?

Clean up dead rodents or nests
  1. Step 1: Wear rubber or plastic gloves.
  2. Step 2: Spray the dead rodent, nest, and surrounding area with a disinfectant. ...
  3. Step 3: Place the dead rodent or nesting materials in a plastic bag along with any used traps. ...
  4. Step 4: Tie the ends of the bag together in a knot to seal the bag.

Should I bury dead rat?

Dead animals should be buried in pits or trenches, or by mounding. The burial site should not be located in an area with a high water table or with very permeable soil.

What smell do rats hate?

Peppermint oil — Essential plant oils like peppermint, rosemary, citronella, sage and lavender have strong botanical scents that rats dislike. One customer successfully repelled a rat by stuffing a peppermint oil soaked tissue into the rat hole chewed into the wall. The rat appeared to never come back.

What attracts rats to your house?

On their most basic level, there are two things you can identify that attract rats and mice: food and shelter. And understandably, these two factors become even more critical for rats during winter, a time when it's cold and there may be fewer food sources available.

How many rats do I have if I see one?

If you only ever see one rat, it's likely that there is just one. However, if you start seeing rats more frequently, it's a sign that there may be more than one. Rats are social creatures, and they often travel in groups. So, seeing multiple rats together is a good indication that several rats are living in your home.

Previous article
Does fiberglass go away on its own?
Next article
Is it legal to use a den as a bedroom?