What Causes Bobbin Thread Bunching and How to Fix It

Fact Checked By:Aithley Balder

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Reasons for Bobbin Thread Bunching and Simple Solutions

The appearance of tangled threads on your cloth is unappealing. When you have to deal with this, it’s usually frustrating since it may damage your sewing effort in a matter of seconds.

In a recent blog post, we discussed the potential reasons and solutions on how to fix sewing machine thread bunching up.

A list of items to look for if the top stitch begins to build a bird’s nest of tangled threads was given in this article

If you’ve had a similar issue with your sewing machine, be sure to have a look at this article.

Our topic for this week is why your thread gathers on the bottom of your cloth, and what you can do about it.

You can tell whether your sewing experience has been affected by what we term “bobbin thread bunching” even if it’s not always obvious when it occurs.

Bobbin thread bunching occurs when the bobbin thread of your sewing machine becomes tangled on the fabric’s underside. Fortunately, this is one of the most frequent sewing machine issues that may be easily fixed.

To use a top stitch needle and sew through the threads, a sewing machine requires a bobbin that is wound uniformly so that the threads may be placed and held in place.

Make sure your sewing machine is properly threaded

sewing machine bobbin thread bunching

Rethreading your sewing machine is one option

It’s best to begin by inspecting the thread guides on your sewing machine. Keep in mind the take-up lever!

Consider whether or whether your bobbin thread is loose, uneven, or not smooth. Rethread your bobbin if this is the case.

Remove the sewing machine’s bobbin case. Using new sewing thread, check for broken or worn-out threads and replace them.

Put the sewing bobbin back in your sewing machine once you’ve cut the thread of any knots or tangles.

Make sure the bobbin is in good condition

bobbin thread bunching under plate

It is rare for bobbin thread bunching to be caused by the bobbin itself. However, you should also check the bobbin to see if there are any issues.

Make sure that the bobbin is placed into the bobbin casing correctly before beginning.

Keep an eye on the bobbin’s tension

Finally, check to see whether the sewing bobbin, sewing machine needle, and sewing thread are free of lint. If there is, all you need to do is use a brush to remove it.

Check the Needle on Your Sewing Machine

sewing machine thread bunching

The needle on your sewing machine may need to be checked or replaced if thread bunching continues.

Use it if the sewing machine needle you’re using isn’t the proper size or type for your machine or the cloth you’re working on.

Check to see whether the needle in your sewing machine is crooked or damaged. Also. One of the most prevalent causes of sewing machine malfunctions is a bent or broken needle. Sewing using a fresh needle may provide better results.

Sewing Machine Upkeep and Repair

thread bunching under fabric

The machine should be cleaned if you still observe a bird’s nest on the bottom of your fabric after doing all of the treatments above.

Oil your sewing machine, change the needle, and clean the area around the sewing machine bobbin to remove any lint.

When doing cleaning maintenance on your equipment, make sure to consult the instructions to prevent any unforeseen issues.

If the condition persists, you may need the services of a specialist.

Frequently Asked Questions (FAQ’s)

Why does the thread on my bobbin constantly getting bound up?

If your thread isn’t evenly coiled on the bobbin, if it has knots, if it’s not smooth, or if it’s not evenly wound, it may not have been threaded correctly. If your machine uses bobbins, you’ll need to rethread the bobbin by removing it from the bobbin case and following the machine’s rethreading instructions.


When it comes to sewing-related issues, both sewing machines and sewing lovers face their own set of hurdles.

As you can see, we’ve attempted to make it as simple as possible for everyone to understand the many options available.

We hope our mini-guide helps you better understand the sewing machine bobbin thread bunching problem and that you’ve learnt how to fix it on your own after reading through it.

How do I fix bobbin thread bunching?

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Aithley Balder

Hello there, my name is Aithley Balder from Texas. I am a cookware, sewing, toilet, technology enthusiast and I have been sharing my passion with my friends and likeminded folks for close to 4 years now. Don’t hesitate to get in touch with me via the contact page.

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