Hello, Dr. George Abrahamian here from LA FUE Hair Clinic in Pasadena, CA. It depends on the extent of trauma to the area, but the vast majority of the time the area will recover, especially if it is a one time trauma. You can get a professional evaluation and see if platelet rich plasma injections or stem cell/exosome therapy can be beneficial for you as well. However, repeated trauma to the area can reduce the follicles ability to grow hair. For example, people who experience trichotillomania (pulling their own hair out constantly) can cause so much trauma to their hair follicles that hair will no longer grow in those areas. Similarly, trauma from traction can also cause alopecia, so hair should be in a relaxed state far more often than pulled in a tight bun/ponytail/braids or cornrows. I hope this helps!
