Does Perm Damage Hair Root?

I am a 30 years old male, I did a perm 5 years ago to make my fine hair look a bit curly, so that it did not look as limp as it used to
be, that was actually the suggestion from the hair stylist based on my soft fine hair, I initially wanted to make it volumized, so he
provided the service of perm to my hair.

After five years, the effect of perm has been already gone for a long time. However, I roughly felt my hair growing a little strange in
recent years as the perm changed the growing pattern or direction to my hair, the hair did not follow the normal straight way to grow, so I
am wondering does it cause some extent of damage to my hair root? Thank you.

Perming your hair does not cause hair loss in general. Sometimes you can harm the hair or irritate the scalp with harsh chemicals involved but hairs generally grow back. Especially after 5 years the correlation of a perm and hair loss/texture changes seem less of a correlation.