Confused by doctor for my hair loss

I’m 19, have been experiencing hair loss for 1 year now, diffused thinning, mainly at crown, slight temple thinning is noticeable now. Today I went to a dermatologist in hopes to be prescribed Fin. Worst consolation I have experienced, I was at the practice for 2.5 hours, and the dr only spoke to me for 10 minutes! He didn’t let me talk, left the office multiple times to see other patients while...

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