Am I Thinning/starting To Go Bald? If So, How Can I Prevent It?

[raptors2019]

25 years old. Uncle on mom's side is bald. Both grandpa's and dad have a full head of hair.

Mostly concerned about the bottom of the crown area.

https://ibb.co/nDP7LLM
https://ibb.co/0Mb9w93
https://ibb.co/6gb1FdW

If so, should I start any treatment/is there something to prevent progression?

 

[Broran]

You're fine man