Is it hair loss?

I get perms about once a year, and I don't usually dye my hair with bright colors.

There is hardly any difference between natural milk and star, so I sometimes wonder whether I should do it or not.

It's been about three years since I last got a perm after purchasing a good curling iron, and I haven't been to the hair salon.

I only got a haircut, and I dyed my hair once.

But it seems like the crown hair loss is getting worse. I originally had a lot of hair.

I thought it was normal to lose a lot of hair when washing my hair, but I noticed that only the hair on the crown of my head is falling out.

It seems similar,ㅠㅠ..

There was a period when I lost a lot of weight, and sudden weight loss can lead to hair loss.

They said it's okay once the weight recovers, so I managed it, but it seems like the hair loss remains the same.

Can hair loss only occur on the crown of the head? I should probably go to the hospital, right?