To make computer work more comfortable, it is important to choose a mouse that matches the dominant hand.
Especially for left-handed people, using a standard right-handed mouse can cause discomfort, extra strain on the hand and fingers, and operational mistakes, which may reduce work efficiency.
Personally, I was originally left-handed, but I was corrected when I was a child, so I use right-handed items, including the mouse, in daily life.
However, there are still many things I use with my left hand, so I often have trouble finding left-handed products.
Ken
This article will clearly explain the features of left-handed mice, the differences from right-handed mice, mouse settings, and recommended mice.
- Left-handed people may feel discomfort or strain when using a right-handed mouse
- Left-handed mice are designed with button layout and shape for the left hand
- Ambidextrous mice expand the range of choices
- It is possible to swap the left and right click buttons in mouse settings
- Using individual accounts means there is no need to change mouse settings every time (convenient for shared PCs)
- Consider S-size mice for children or people with small hands
This article summarizes the essential knowledge for choosing a mouse.
≫ Related article: How to Choose a Mouse [Features / Compatibility / Points to Note]
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Table of Contents
About Left-Handed Mice
This section explains the features of mice for left-handed users, differences from general products, and necessary settings.
What is a Left-Handed Mouse?
A left-handed mouse is a mouse designed specifically for use with the left hand.
It is designed to match the movement and finger position of the left hand, and has the following features:
- Shaped to fit the hand
- The left and right click buttons are reversed
- Side buttons are placed where the thumb can easily press them
Ken
If there is discomfort when using a right-handed mouse with the right hand, even though left-handed, it is worth considering a left-handed mouse.
What is the Difference Between Left-Handed and Right-Handed Mice?
The main differences between left-handed and right-handed mice are in shape, button layout, and operability.
A right-handed mouse is shaped to fit the curve and finger position of the right hand, and the side buttons are placed where the thumb can easily press them.
Therefore, when used with the left hand, the buttons are hard to press, the palm and fingers do not fit well, and it can become tiring after long use.
On the other hand, a left-handed mouse is designed in reverse so that it fits naturally when held in the left hand.
For example, the side buttons are on the left thumb side, and the curve of the mouse is adjusted for the left hand.
Also, especially for gaming mice or high-function mice, there are fewer left-handed models, so the options are limited compared to right-handed ones.
Since the left-handed population is small, the number of products is also small.
Ken
Ambidextrous Mice Usable by Both Left and Right Hands
Ambidextrous mice are designed to be used comfortably with either the right or left hand.
The left and right click buttons and side buttons are placed on both sides, so both right-handed and left-handed users can operate them intuitively.
Especially for models with side buttons on both sides, shortcuts and browsing operations can be performed comfortably regardless of dominant hand.
However, compared to mice designed specifically for left or right hands, the fit may be slightly inferior, but the operability is still comfortable.
Ken
Also, if the mouse supports dedicated software, the right side buttons can be set as default forward/back buttons, and the left side buttons can be assigned to frequently used functions or shortcuts.
Since there are few left-handed mice, and even fewer when considering required functions, buttons, price, and design, the options become very limited.
Sometimes, it may be hard to find one at all, and some compromise may be necessary.
However, if ambidextrous models are included, the range of choices increases, allowing for more focus on other specifications and designs.
How to Swap Mouse Left and Right Buttons
Swapping the left and right mouse buttons makes it easier for left-handed people to operate a computer.
Normally, the left button is the primary button (click), and the right button is the secondary button (right-click), but by changing the settings, the right button can be set as the primary button.
This allows natural clicking with the left hand, improving work efficiency.
However, if already used to using the left button as the primary and the right as the secondary, it is fine to keep it as is.
How to Open Mouse Settings
Right-click the [Windows] button on the left of the taskbar ⇒ [Settings] ⇒ [Devices] ⇒ [Mouse] in the left menu
By changing [Select your primary button] ⇒ [Right] in mouse settings, the actions of the left and right buttons can be swapped.
When using a shared Windows account at work or home, the mouse settings must be changed every time, which can be troublesome.
If the mouse settings are not returned when shutting down, the next right-handed user may find the button actions reversed, leading to mistakes or stress.
However, by creating individual Windows accounts, settings can be saved for each account, so there is no need to change mouse settings every time.
Recommended Left-Handed Mice
This section introduces recommended left-handed and ambidextrous mice.
When searching for these mice on online shopping sites, right-handed models often appear, making it difficult to find the right one.
Here are some good options considering functions, number of buttons, and cost performance.
Standard Mouse: Sanwa Supply MA-WBL164BK
Sanwa Supply MA-WBL164BK is a standard left-handed mouse.
There are two types: wireless 2.4GHz and wired, both priced at around 1,300 yen, making them affordable.
In terms of buttons and functions, it is a very ordinary mouse with just forward/back side buttons, so it is suitable for those who only need the basics.

Standard Mouse: Sanwa Supply MA-BTBL171BK
Sanwa Supply MA-BTBL171BK is an ambidextrous Bluetooth mouse.
It has side buttons on both sides, so left-handed users can use the right side buttons for forward/back, and assign functions to the other side using dedicated software.
The mouse is compact at 9.34cm in length, recommended for:
- Carrying for business trips or travel
- People with small hands
- Left-handed children
Available in three colors: black, white, and red.

Gaming Mouse: Razer Naga Left-Handed Edition
Razer Naga Left-Handed Edition is a wired gaming mouse for left-handed users.
In addition to standard buttons, it features 12 grid side buttons that can be customized using dedicated software.
This mouse is recommended for MMORPGs that require many items and skills.
In MMORPGs, skills and items are often assigned to the number keys 1–0 on the keyboard, but including the WASD movement keys, it can be hard to reach or press keys 5–0.
Assigning these keys to the mouse allows for smoother gameplay.

Gaming Mouse: Logicool G PRO 2 LIGHTSPEED
Logicool G PRO 2 LIGHTSPEED is an ambidextrous wireless gaming mouse.
Ambidextrous mice are common, but those with side buttons are rare.
It features a maximum 44,000 DPI and the high-precision “HERO2” sensor, making it suitable for FPS games.
Ergonomic Mouse: Perixx PERIMICE-713L
Perixx PERIMICE-713L is a left-handed ergonomic mouse, available in 2.4GHz wireless and wired types.
Ergonomic mice are designed to reduce wrist strain, making them comfortable for long hours of use and suitable for those with wrist fatigue or tendonitis.

Trackball Mouse: Elecom M-XT4DRBK-G
Elecom M-XT4DRBK-G is a left-handed 2.4GHz trackball mouse, available with red or black trackballs.
Below the wheel is a DPI switch (750/1,500), and there is a function button for the left ring finger.
All buttons can be customized with dedicated software.

Frequently Asked Questions About Left-Handed Mice
Here are some frequently asked questions about left-handed mice.
Why Are There So Few Left-Handed Mice?
The main reason is that left-handed people make up only about 10% of the population.
Therefore, manufacturers tend to prioritize developing and producing right-handed mice that can accommodate more users, and left-handed models have a small market (low demand), so new models are rarely released.
Also, since ambidextrous mice can be used with either hand, there is often little need to design and manufacture left-handed models.
Making left-handed models requires dedicated molds and production lines, increasing manufacturing costs and inventory management burdens.
Even at electronics stores and online shops, left-handed mice have high inventory risk due to low demand, so they are rarely stocked.
For these business reasons, the variety of left-handed mice is inevitably limited.
Summary: Including Ambidextrous Mice Expands the Range of Choices!
This article explained the features of left-handed mice, differences from right-handed mice, mouse settings, and recommended mice.
Here is a summary of the key points.
- Left-handed people may feel discomfort or strain when using a right-handed mouse
- Left-handed mice are designed with button layout and shape for the left hand
- Ambidextrous mice expand the range of choices
- It is possible to swap the left and right click buttons in mouse settings
- Using individual accounts means there is no need to change mouse settings every time (convenient for shared PCs)
- Consider S-size mice for children or people with small hands
For left-handed people to work comfortably on a computer, it is essential to choose a mouse that suits them.
Dedicated left-handed mice offer excellent operability, but the number of products is small, and compromises may be needed in terms of functions or design.
By including ambidextrous mice as an option, it is possible to maintain a good fit and usability while choosing from a wider range of products.
Use the method of swapping mouse buttons in settings to find the best mouse for your style and create a stress-free work environment.
This article summarizes the essential knowledge for choosing a mouse.
≫ Related article: How to Choose a Mouse [Features / Compatibility / Points to Note]
Select PC parts and online stores to instantly generate an estimate, check compatibility, and calculate power requirements. You can save up to five different builds, making it easy to try out multiple configurations.
≫ Tool:PC Parts Estimation & Compatibility Check Tool