Why your mouse cursor skips or stutters

Your mouse cursor pauses, jumps across the screen, or moves in short bursts instead of following your hand. That can come from a dirty sensor, a weak wireless connection, a setting, or a fault in the mouse.

Start by checking whether the problem affects pointer movement, clicks, or both. The Mouse Test checks clicks, scrolling, double-clicks and polling rate. It cannot identify every cause of a cursor stutter, but it can help you narrow down what is going wrong.

Check what the mouse is doing

1. Open the Mouse Test and keep the page visible while you move the mouse slowly, then quickly. Notice whether the pointer itself pauses or jumps.
2. Use the test to check the mouse buttons and scroll wheel. See whether each action registers reliably when the pointer stutters.
3. Check the polling rate shown by the test. Polling rate is how often the mouse reports its position to the computer. A very low or inconsistent reading can point to a connection or mouse issue, but does not prove the mouse is faulty.
4. Try the mouse on a different surface, such as a plain sheet of paper or a mouse pad. If it works smoothly there, the original surface may be confusing the sensor.
5. If the mouse is wireless, test it close to the computer and replace or recharge its battery. If possible, connect it by cable or try its receiver in another USB port.

What the result means

The pointer stutters, but clicks and scrolling register

The buttons are reaching the browser, but that does not rule out a tracking problem. A dirty sensor, unsuitable surface, weak wireless link, or a problem with the computer drawing the pointer can all cause this. Try the surface and connection checks below before replacing the mouse.

The pointer, clicks, or scroll wheel all stop together

The whole mouse connection may be pausing. This is more likely with a weak battery, a loose USB receiver, a crowded USB hub, or wireless interference. If the test stops receiving input at the same time as the cursor freezes, focus on the connection first.

The pointer moves smoothly, but clicks fail

That points more toward a button or app issue than a tracking problem. Check the buttons in the test and in another app. If one button fails in both places, its switch may be worn or damaged.

The pointer stutters only in one app

The mouse may be fine. An app that is busy, displaying a demanding page, or running slowly can make the pointer appear to lag within its window. Check the desktop and another simple app, then close and reopen the app where you noticed the problem.

The polling rate is low or changes sharply

The number can vary with the mouse, its connection, and the test conditions. A single low reading is not a diagnosis. Repeat the check with the mouse close to its receiver, on a charged battery, and with fewer apps using the computer.

How to fix a skipping mouse cursor

1. Clean the sensor and try another surface. Turn the mouse over and remove dust or hair around the sensor with a dry cloth. Optical mice can struggle on glass, shiny desks, or patterned surfaces, so test on a matte mouse pad or plain paper.
2. Charge the mouse or replace its battery. A low battery can make a wireless mouse lag, disconnect, or behave inconsistently. If the mouse uses replaceable batteries, fit a fresh one and check whether the stutter stops.
3. Reconnect the mouse. Unplug and reconnect a wired mouse, or move its USB receiver directly to the computer instead of using a hub. For Bluetooth, turn the mouse off and on. On Windows 11, check Settings › Bluetooth & devices. On macOS, check System Settings › Bluetooth and reconnect the mouse if it shows as disconnected.
4. Move the receiver closer. For a wireless mouse with a USB receiver, use a port with a clear path to the mouse. Move the receiver away from USB hubs, external drives, and other wireless devices where possible. A short extension cable can help place the receiver on the desk.
5. Check pointer speed. On Windows 11, open Settings › Bluetooth & devices › Mouse and adjust Mouse pointer speed. On macOS, open System Settings › Mouse and adjust Tracking speed. Speed changes will not repair a bad connection, but they can make small interruptions less noticeable.
6. Close busy apps and restart. Save your work, close apps using a lot of processing power, and test again. If the pointer still stutters across the desktop, restart the computer to clear a temporary driver or system problem.
7. Check for accidental touchpad input. On a laptop, your palm can move the pointer while you use the keyboard. On Windows 11, open Settings › Bluetooth & devices › Touchpad and temporarily turn off the touchpad to test. On a Mac, check System Settings › Trackpad and see whether the pointer moves when your hand brushes the trackpad.

When the mouse may be faulty

Test the mouse on another computer, preferably with a different surface and connection. If the cursor still skips, the mouse disconnects when you move its cable, or the same button repeatedly fails in the Mouse Test, the mouse or its cable may be damaged. Check the warranty before opening it. For an inexpensive mouse, replacement is often simpler than repair; for a laptop's built-in pointing device, ask a repair shop to check the hardware.

Why a cursor can stutter when the mouse is fine

The pointer you see is drawn by the computer, while the mouse sends movement information separately. If the computer is struggling to update the screen, the pointer can look delayed even when the mouse is reporting movement normally. A useful clue is whether the whole screen also freezes or becomes choppy. If only one app is affected, troubleshoot that app before changing mouse settings or buying new hardware.