Can a stuck pixel disappear and come back?

You spot a tiny colored dot on your screen, but it disappears when you open another window. Later, it shows up again. That can happen with an intermittent pixel, but a mark that fades may also be temporary image retention or an issue with the picture being sent to the screen.

Check whether the mark stays in the same place across solid colors and different sources. The Stuck Pixel Fixer can flash colors over the area in an attempt to free a stuck pixel, but it cannot guarantee a repair.

Check whether the pixel is really stuck

Open the Stuck Pixel Fixer and locate the mark on your screen. Note its position relative to the edges, so you can find the same spot again.
Show solid colors, such as black, white, red, green, and blue, one at a time. Look for the mark on each background. A pixel that stays colored or dark in the same physical spot is more suspicious than a mark that moves with a window.
Check the same area in a different app or with a full-screen color image. If it is an external monitor, try another input source or device if one is available.
If the dot appears to be one pixel and remains in place, position the Fixer’s flashing area over it and use a short timed cycle. Stop if the flashing makes you uncomfortable, and do not stare at it.
After the cycle, show the same solid colors again. Check once more later, because a pixel that looks normal immediately afterward may become noticeable again.

What the result means

The dot stays in one place on several colors

A single subpixel, the red, green, or blue part that makes up a screen pixel, may not be changing as it should. A stuck subpixel often looks like a tiny colored point, while a dead pixel is often dark. These signs are useful clues, not a certain diagnosis. See stuck pixel vs. dead pixel for more detail.

The mark disappears on some backgrounds

The pixel may still be faulty but harder to see against certain colors. For example, a red subpixel can blend into a red background. Compare the spot on multiple solid colors rather than judging it from one screen or one app.

The mark moves with the picture or is larger than one pixel

It may not be a panel pixel. A graphics glitch, cable, adapter, app, or image can create a mark that changes position or shape. If you see it only in one app, restart that app. If it appears only on an external display, try another cable or input before assuming the panel is damaged.

A faint image fades over time

A lingering outline of a previous window or menu may be temporary image retention, rather than one stuck pixel. It usually covers a larger area and gradually fades. Leave the screen showing varied content or turn it off for a while, then check again. Learn more about temporary image retention and stuck pixels.

The dot disappears after flashing but returns

The flashing may have changed how the pixel behaves temporarily, or the change may simply be hard to see under different colors. A returning dot means the problem is not reliably fixed. Recheck it under the same conditions, but do not keep running flashing cycles for long periods. The Fixer is an attempt, not a repair guarantee.

What to try next

Clean the screen gently. Turn the display off and use a soft, clean microfiber cloth. Dust or a mark on the surface can look like a pixel fault, especially on a bright screen. Do not press hard on the panel.
Restart the device and display. A restart can clear a temporary graphics or connection glitch. For an external monitor, turn it off and back on, then check that the video cable is firmly connected.
Check the display settings. On Windows 11, open Settings › System › Display › Advanced display and confirm the selected display and its refresh rate are supported. On macOS, open System Settings › Displays and confirm the correct display is selected. These settings do not usually fix a physical pixel, but they can rule out an unusual display configuration.
Compare another source. Connect the monitor to another computer or device, or show a different source on the same screen. If the dot stays at the same physical spot across sources, the display is more likely to be responsible. If it disappears, investigate the original device, cable, or adapter.
Use the flashing test only as a brief attempt. The Stuck Pixel Fixer rapidly changes colors in an area of the screen. It may help a stuck pixel, but it cannot repair a dead pixel or damaged panel. Stop right away if you experience eye strain, a headache, or discomfort from the flashing.

When the screen may need repair

If the same dot remains in exactly the same place on several colors, apps, and input sources, a panel fault is likely. A browser test cannot inspect the screen’s electronics or prove the cause. Check the manufacturer’s warranty and pixel policy before paying for a repair. Policies differ, and some allow a small number of defective pixels. If the screen is out of warranty, ask a repair shop for a quote; on many monitors and laptops, replacing the panel is the practical fix.

Why a pixel can seem to come and go

A pixel is made of tiny colored subpixels controlled by the display. If one behaves inconsistently, the dot may be visible on some colors and almost invisible on others. Brightness, the image behind it, and the display’s current state can also change how easy it is to notice. That does not necessarily mean the pixel healed and then broke again. Use the same colors and viewing conditions each time you check, so you can compare like with like.

If the flashing test does not help, avoid pressing or rubbing the screen. Pressure can damage nearby pixels or the panel.