First I’ll like to say, I really enjoy your blog. I found your blog about a year ago and love it.
I have a question about hairlines. I have an asymmetrical hairline. I think its mature on the right and juvenile on the left. So could it be that my right side is juvenile and my left side is normal? I know you said they eventually even out, but are there any cases you know of where they DON’T even out?
You can have both the appearance of a juvenile hairline and genetic male pattern balding occurring at the same time. Unless you have an examination and also followed over a course of a year, it is likely difficult to tell. Other factors, such as your age, family history, degree/pattern of miniaturization, and even bulk measurements can aid in a more objective diagnosis.
Unfortunately, I don’t know enough about your case to give you a decent idea of what is happening to your hairline. Having an asymmetrical hairline isn’t impossible, but I wouldn’t be surprised if in time you see the other side catch up.