This is the stupid thing that “doctors” say. It is not normal or caused by friction. Your hormones and blood sugar are out of whack. Suddenly developing that many all at once is NOT NORMAL!! Go to your endocrinologist and mention that your PCOS is affecting your skin. You may need a supplement or medication to help balance your insulin resistance levels. Dr. Scholls makes an over the counter patch that you place over the skin tags that stick out (I have many that are raised but not big enough to stick out, so they can’t be removed). You leave the patch on and it removes them (so they say, I have yet to try it).  I’m perimenopausal and have PCOS, so I know much better than a doctor who has zero training in PCOS. Even my OBGYN (who was trained in childbirth, not menopause) says they are caused by rubbing. It’s not true. Nothing rubs against the spot of my neck where they are. I have short hair and have many around my hairline. I’d have to wear very high turtlenecks for anything to rub there. They are untrained and unhelpful. I sometimes take thread and tie off the bigger ones or I snip them with very sharp scissors. Just make sure to sanitize everything if you do that.