How To Get Rid Of Dead Mouse Smell. Step by Step Guide

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It may start with a faint rotting odor that hits your nostrils a few times every day. Then, over the next few days, the smell gets strong and stronger. It is now too obvious, something is rotting in your home and you need to do something about it!

This is the same situation I found myself in, so if you want to know how to get rid of dead mouse smell, then I’ve got you covered in this post!

Recommended Gear

Before you begin to remove the dead mouse smell, I have a list of gear that I recommend for you prepare:

It is vital that you look after your health when dealing with rodents due to the potential diseases they might be carrying.

How To Get Rid Of Dead Mouse Smell

How To Get Rid Of Dead Mouse Smell In 6 Steps Infographic

1. Find The Mouse

First things first. You need to find the dead mouse. 

Let’s face it, if your nose works then it shouldn’t be too much of a problem to find out where the smell is coming from. The only problem will be if the mouse has died inside your cavity walls, or in another area that is difficult for you to get to.

Follow your nose, and find the dead mouse. You will not stop the smell without first removing the dead mouse!

It may take a while to hunt down where the dead mouse smell is coming from. You might want to consider searching the most common places for mice to hide.

2. Removing The Mouse

Removing the mouse is the next step, and it isn’t a pleasant one either.

When picking up dead rodents, I always have gloves on, every time. Not only do I have gloves on, but I also pick the body up through the trash bag.

A word of warning, if the mouse has been dead for a few days, you might already have a group of maggots feasting on the dead body. I just wanted to prep you for that one!

Place the dead mouse inside the trash bag and double up if you need to.

Congratulations! You have removed the dead mouse. Now it is time to ventilate the areas and clean up.

3. Ventilate The Area

Let’s get some windows and doors open. We need the smell to escape somewhere. At this point, I never care about how cold it is outside, I just want the smell to be gone.

If you are in an area far away from a door or window, just open the closest one. Every little helps when you are dealing with a rotting mouse, trust me!

You might want to consider using an air circulating fan to help disperse the dead mouse smell.

4. Deep Clean The Area

When cleaning up after a dead mouse, you first need to clean the area where you found the mouse and then clean up any area that has obvious signs of a mouse infestation.

Check your home for any mice nests, mice urine, and mice feces. Perform a thorough clean up of these areas.

You have two options when it comes to cleaning the area.

Vinegar and Water

Use vinegar and water in a 50/50 mix. If you have an area that needs more, then up the vinegar content.

Generally speaking, I use this mix for areas that should not be cleaned with bleach.

Oh, by the way, vinegar only smells for a few minutes! I know that some people question whether or not the vinegar smell will also linger, it doesn’t.


Bleach is my go-to product for cleaning up after finding a dead mouse.

If you want to be certain that the area is clean and free of any bacteria, then bleach is your product!

Just be careful using it because it has the ability to ruin clothing etc.

5. Freshen The Area

Now is the time I will place down odor absorbers, and air fresheners.

It is important to get the smell out of the area as soon as possible by using odor absorbers such as ground coffee, or charcoal.

Consider using joss sticks, or incense sticks. These have a very strong smell and will help you to overpower the dead mouse smell.

6. Protect The Area

Protecting the area means making sure no pesky mice can get back in!

It is one thing getting rid of a dead mouse smell, but another thing to keep mice away so you don’t have to go through this whole things again!

Frequently Asked Questions

How long does it take for a mouse to decompose?

At least 3 weeks, and it depends on the temperature. A dead mouse can take months to fully decompose. During this time you can expect the odor to continue.

How long has the mouse been dead for?

It is difficult to tell. A mouse will start to smell within days of dying and will take a number of months to fully decompose. During this time, the smell of the dead mouse will get stronger and stronger.

There are maggots, will I get flies too?

Unfortunately, you are likely to notice a few flies after finding maggots. When I found my first dead rodent, there were a number of maggots. After clearing every single maggot I could find, I still had a few flies a week later! You need to search through the affected area and ensure it is totally clean, otherwise, you will run the risk of maggots, and then flies.


Getting rid of dead mouse smell can be a challenge. In this post, I have given you the exact tools you need to tackle the problem! The smell of a dead mouse lingers for weeks, if not months unless you do something about it.

It required a keen eye, a strong stomach, and some stronger cleaning equipment!

The most important thing is that you locate and remove the mouse. That is the time when the smell starts to disappear and you can see light at the end of the tunnel.

Find where the rodent died, and you have found the source of the problem.

Good luck!


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