To Perm or Not to Perm

Yes but the perm chemicals can cause additional killing of follicle.  On a head that has dead hair from the surgery, more killing of follicles from wight loss.  It can be adding more follicles at their dead stage and that many more that have to start the process of growing a new hair.

As a former hairdresser (over 20 years in the field) I can tell you there are different kinds of perms. Some are more gentle that others, on the scalp as well as the hair strand. Your hairdresser knows your type of hair best...and she knows her perm products.  Is your hair fine and already thin? Are you looking for body or something curlier? Do you work your hair hard, as in blow drying and curling iron every day, weekly, or not at all? Is your hair long or short? Short hair generally needs to be permed every 3 months. Long hair can go much longer. It is hard on the hair to perm over an existing perm. Also, is your hair colored? Anyway, there are a lot of factors that go into deciding what to do. Here is another thing. I'm not sure why, I think it relates to the kinds of medication one is taking over long term, but hair sometimes becomes more resistant to grabbing curl. It is like there is an internal coating that repels the perm solution and prevents the perm from breaking the internal cystine links, which later relink in the shape of the perm rod during the neutralizing stage of the perm.

Further, there are certain situations when I wouldn't perm someone's hair. For example, a client whose hair is just growing back after chemotherapy, I would not touch for a year. It generally takes that long for the hair follicles to recover and the fragile hair to gain enough internal strength...and the first new growth would have to be cut off because it probably wouldn't be able to survive the perming chemicals. Okay, I've gotten long winded. If it was me, I'd consult with an experienced hairdresser. It probably won't effect your hair follicles and cause hair loss. That may happen later due to internal hormone changes.

Of note: I haven't heard anyone mention this, but I always lost a lot of hair 4 months post birthing every baby. I believe that was due to hormonal changes too.