Why Does My Thread Keep Breaking While I Sew?  One common
problem people experience with their sewing machine is that the
thread keeps breaking while they sew. If you are having this
same problem, consider the following common problems.    • Your
Sewing Machine Is Threaded Incorrectly: If your thread cannot
move smoothly through your machine, it will most likely break.
This is because it can get snagged on moving parts or be pulled
too tightly. Make sure that your sewing machine is threaded
correctly and that the thread is going through the tension rings
properly. Also, make sure the thread can freely move on the
spool pin.   • Your Needle Is Damaged: If you’ve been sewing
over pins or you haven’t changed your needle in a while, it may
be damaged. Over time, your needle becomes dull, and it can bend
when you sew over things you are not supposed to. This can cause
your thread to break because the needle could get snagged and
pull the thread too tightly. Try changing your needle to see if
it fixes the problem.