Fibroids are common. It is difficult to know exactly how common they are as many women won't have any symptoms, and so may not know they have fibroids. Probably at least 1 in 2 women develop one or more fibroids in their lifetime, and probably more. They usually develop in women aged 30-50 and can sometimes run in families. It is common to have several fibroids of various sizes, although some women just have one.
This is a companion discussion topic for the original article at https://patient.info/womens-health/periods-and-period-problems/fibroids