Hair Trauma After Extensions: Will my Hair Grow Back?

There is a high likelihood your hair will grow back. It sounds like you are experiencing shock loss (Telogen effluvium) due to the effect of trauma to your scalp. This condition may last up to 6 months. I recommend you visit your local dermatologist for an evaluation and management. After the trauma and inflammation has settled down, topical minoxidil may be useful. But, again, you should consult your dermatologist.

You need a formal evaluation by a dermatologist. I suspect a biopsy might be needed as well. The key point is that a scarring alopecia must be ruled out. It may or may not be temporary in this particular case. The key issue that influences everything here is whether there is an underlying primary or secondary scarring alopecia. 

The hair loss you had after this isolated experience should be temporary.  Just be sure not to wear your hair too tight.  Over time, this can cause significant and permanent hair loss. We have treated many a patient with "traction alopecia."  Hair transplantation using micrografts/Follicular Unit Transplantation provides natural, excellent results.  If the hair still has not returned, please make an in-person consultation with an experienced hair transplantation surgeon near you.  We have an excellent office in Houston. Good luck!