@Angela80 actually I just saw a video on this problem from a well-known California doctor he's on YouTube I think his name is rajya .just look up threads you will find him he has black hair he looks like he's stuck in the '70s. Go to his playlist and look under PDO threads. He has a video on why some threads bunch up. Basically it might be the thread itself do you use them straight away after you have opened the pack they do have a shelf life.are you getting them from a reputable source or are you buying them from eBay. He warns about the quality of threads. just a reminder when you put them in they should glide in easily if you're in the right plane it should not feel like a needle is going all the way into your skin. Slightly uncomfortable but definitely not a pinching needle sensation.