I am wondering if it is important to start hair loss treatment early.

I wonder if hair loss is starting, as my hair has been falling out a little lately.
I wondered if I should start treatment at this stage.
I am concerned because I've heard that recovery is better if managed early.
It doesn't look noticeably empty yet.
However, I am worried that it might progress if I just leave it alone.
I am also confused about whether medication or scalp care should come first.
People around me said it's better to start early.
I became curious about what the exact criteria are.
I am wondering if it is okay to wait and see a little longer.