Skipped stitches are almost always caused by a worn, bent or wrong needle, so start there. Swap in a fresh needle that matches your fabric, re-thread the machine with the presser foot up, and check that the needle is pushed all the way up and facing the right way. Those three steps fix most cases in about five minutes.
Why does it happen at all? Every stitch depends on a tiny moment of perfect timing. The needle goes down, rises a little, and the hook has to catch the loop of thread that forms right behind it. When that loop is too small, too sloppy or in the wrong place, the hook misses it and you get a gap. So nearly every fix comes down to helping the hook catch that loop.
Start with the needle (it’s the usual culprit)
Needles wear out faster than most people expect. A dull or slightly bent tip can’t pierce fabric cleanly, and the fabric gets pushed down instead, which keeps the thread loop from forming properly. If you can’t remember when you last changed yours, change it now. A common rule of thumb is a new needle after every 6 to 8 hours of sewing, or sooner after hitting a pin.
Then make sure it’s the right kind of needle for the job:
- Stretch and knit fabrics: use a ballpoint or stretch needle. A sharp universal needle can slip between the fibers and skip.
- Woven cotton and linen: a universal or sharp needle works well.
- Thick denim, canvas or layers: go for a denim or jeans needle, and a bigger size.
- Slippery fabrics like satin: a fine, sharp needle is the better choice.
Finally, check how it’s installed. The needle has to be pushed all the way up into the clamp, with the flat side facing the direction your manual shows. A needle that sits even a hair too low is a classic reason for skipped stitches.
Re-thread the whole machine
Here’s a fix that sounds too simple but works surprisingly often. Take out the top thread completely and thread it again from the spool. Do it with the presser foot raised, because that opens the tension discs and lets the thread seat properly. If the thread skipped out of a guide, or looped around the spool pin, it can throw off the stitch without any obvious sign.
If threading always feels like a puzzle, our walkthrough on how to thread a sewing machine without getting frustrated covers the path step by step. While you’re at it, check the bobbin too. It should be wound evenly, sit in the case the right way around, and pull out smoothly.
Match your thread and needle size
Thread that’s too thick for the needle eye drags and shreds, and thread that’s too thin can flop around and miss the hook. Old, dry thread causes trouble too, especially the bargain spools that have been sitting in a drawer for years. As a general guide, a medium-weight thread suits a size 80/12 or 90/14 needle. Thicker thread needs a bigger needle with a larger eye.
Try a quick test. Sew a few inches on a scrap of the same fabric using a different, good-quality spool. If the skipping stops, the thread was your problem.
Check the fabric, foot and tension
Sometimes the machine is fine and the fabric is the troublemaker. Stretchy, coated or very tightly woven fabrics are hard on needles. Fabric that bounces up and down with the needle (called flagging) is another cause, and it’s common when the presser foot is too light or the wrong height. Make sure the foot is down and the right type for the job.
Tension matters as well, though less often than people think. If the top tension is far too tight, the thread can’t form a loop. Reset it to the middle setting, test on a scrap, and then adjust a little at a time. Pulling or pushing the fabric as you sew can bend the needle and throw off the stitch, so let the feed dogs do the work.
Clean out lint and look for timing problems
Lint builds up under the needle plate and around the bobbin case, and it can quietly block the hook. Unplug the machine, remove the plate and the bobbin case, and brush out the dust. A drop of machine oil where your manual says to oil can help, too. Don’t use compressed air at full blast, since it can push lint deeper.
If the skipping continues after you’ve tried a new needle, fresh thread, clean parts and proper threading, the timing may be off. That means the needle and hook aren’t meeting at the right moment. It can happen after a needle strike or a hard knock. Timing repairs are fiddly, so it’s often best to have a technician look at it rather than guess.
A quick checklist for fixing skipped stitches
- Put in a new needle of the right type and size.
- Push it all the way up, flat side the correct way.
- Re-thread the top and the bobbin, with the presser foot up.
- Try a different spool of good thread.
- Reset the tension to the middle and test on a scrap.
- Clean the lint from the bobbin area.
- If it still skips, book a service.
Frequently asked questions
Why does my sewing machine skip stitches only on stretch fabric?
Stretch fabric flexes up with the needle, which makes it harder for the hook to catch the loop. A ballpoint or stretch needle is made for this, and a slightly longer stitch or a walking foot can help too.
Can a dull needle really cause skipped stitches?
Yes, and it’s the most common cause. A blunt or bent tip pushes the fabric instead of piercing it, so the thread loop forms badly. Changing the needle costs very little and often fixes things instantly.
How do I know if the timing is off?
If skipping continues with a new needle, good thread, correct threading and a clean bobbin area, timing is a likely suspect. Because it needs special adjustment, a repair shop is usually the safest option.
The bottom line
Skipped stitches feel like a big mystery, but the fix is usually small: a new needle, careful threading or a bit of cleaning. If you’re finding that your machine struggles no matter what, it may be time for an upgrade. Our guide to the best computerized sewing machines under $200 is a good place to start on a budget, while the best quiet computerized sewing machines suit shared spaces. If you sew thick materials often, see the best leather sewing machines. Not sure which type suits you? Read our comparison of mechanical vs computerized sewing machines.