I heard that epidural leads to permanent back pain post delivery..is this true?

i had to get epidural for my pregnancy and my friend had it twice for both her babies, but neither she nor I had any back pain. i did have a little back pain for about 6 months after my baby was born, but it was not just because of epidural but also because i used to carry my baby a lot and did not have any help, which meant i had to do all the house work as well as take care of baby. i also could not take care of my nutrition and my sleeping position was also very erratic. many females experience back pain after an epidural, but it is not just because of the epidural but due to various other factors as well. https://www.coreconcepts.com.sg/article/does-labour-epidural-cause-chronic-backache/