How Long Does A Dead Mouse Smell (And Why)?

Exact Answer: 7 days

Several nasty odors could infiltrate your home, but the stench of a dead mouse or other rodent is distinct. It begins with a rotten odor that is unusual for the home’s location. Then it starts to smell like rotting cabbage and has that distinctive decay smell.

The scent of death can be caused by removing bugs or rodents, but the odor may lead you to believe that the remedy is worse than the problem.

How Long Does A Dead Mouse Smell

How Long Does A Dead Mouse Smell?

ConditionsLasts for
A single dead mouse1 to 7 days
Group of dead mice1 week

Dead animals will continue to stink until they have decomposed or have dried out. If the place is damp, the smell will linger longer. A dead mouse’s odor may barely last a day. A single dead mouse may not have an odor, but multiple dead mice in the same area could be an issue. A dead rat may stink for a week, but the odor might persist for up to a month.

Use your nose to find a dead animal in a wall void. Flies in the room, or even Pepper, your dog, may bring you right to the place. Maggots may be seen moving away from the body. You may also notice a damp area or spot on the roof surface if you have a larger animal.

The best option is to have the corpse removed. Drill a hole in the wall, one foot just above flooring and dump or inject a disinfectant, odor neutralizer, or masking solution if you think you’ve located the dead animal, and it can’t be removed. After that, be careful to seal the injection holes.

Seal any crevices that are causing the stink to escape from the void if possible. Then, using a fan, force the old air out of the treated area by drawing fresh air in. Place the fan in such a way that it will blast air out of the window or vent it is in while drawing fresh air in from another window or vent across the room.

The scent will become worse before getting better as nature takes its course, then gradually improve and eventually disappear. The following are methods to remove the stench from a dead animal:

  • A product that eliminates odors.
  • Using an air cleaner with an absorbent filter will remove the stink from the air. A filter that absorbs liquids, such as activated charcoal or silica gel. When room air passes through the filter, particulates are absorbed and removed.
  • You can neutralize the stink by adding anything to the air.
  • You can replace the undesirable odor with a new, more pleasant odor that temporarily conceals or covers it. Masking deodorants are perfumes with a high concentration of aroma that mask an unpleasant odor. They don’t get rid of it.

Why Does The Smell Of A Dead Mouse Last For So Long?

The intensity and duration of the odor are determined by the size of the small mouse, the warmth of his ultimate resting place, the moisture of the environment, and its exposure to decomposing organic matter.

When disposing of a dead mouse, be certain that your skin does not come into touch with the carcass. This is what you must do:

  • Have your safety equipment ready – Put on a face mask and rubber gloves to protect your mouth and hands.
  • Place the corpse in a sealable plastic bag – you may do this with a tool or by hand. It’s also not a bad idea to pour some bleach over the corpse to sanitize it if you like.
  • Dispose of everything securely in the garbage can – place both bags in a larger bag, knot it, and throw it away.
  • Sanitize and wash – Using an appropriate sanitizer, clean the surface, any helpful tool you may have used, and your gloves.

If you detect mouse droppings or gnawed food boxes, act swiftly to get rid of the mice before they cause further harm. Find their access point and shut it off from where they’re coming, because strewing traps all over your floor isn’t going to assist you. Set mouse traps since it is one of the most successful ways to get rid of mice. Place mouse traps in susceptible places of your home, such as along walls and behind garbage cans.

Clear the garage for mice; automobiles are just as tempting to mice as houses, and if they begin gnawing on wires, they may cause major damage to your vehicle. Set up a couple of rat traps in your garage to keep any unwelcome creatures at bay.


Mice will seek food, warmth, and refuge indoors during the fall and winter months. This is the moment to seal up all of your home’s access points and take the required procedures to get rid of mice in your home.

Keep in mind the potentially dangerous consequences rat poison can have on you, especially small children. Consequently, it is preferable to avoid using poison in your house. So, to avoid stress, look for a local pest control business that employs harmless ways or even fewer pesticides to eradicate and identify mice in your home.



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Hi! I'm Nidhi.

Here at the EHL, it's all about delicious, easy recipes for casual entertaining. So come and join me at the beach, relax and enjoy the food.

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