Im 21 and my hair isn't as thick as it was last time I grew it out longer. But is my hair in the picture provided anything of concern? It kinda looks like the early formation of a bald spot to me. I'm adopted with no knowledge of my birth parents so I don't know of any hair issues I might have inherited. Should I try get something done about this or not? Pic linked. Will also upload pic of when my hair was longer and how it looked then.
