IMO the only picture of concern is the last. From that photo it COULD be diffuse thinning, it is really hard to tell because harsh light mixed with the limitations of cellphone cameras can make it look worse, it's also hard to get across depth in photos and it appears that it might be sticking up a bit.
I've said this before on here and I'll say it again, nobody here can diagnose you with male pattern baldness over the internet, all they can do is give you their own opinions. Don't jump on finasteride because somebody on here tells you, but also don't ignore what you don't want to hear. You're lucky you're being proactive. Personally I recommend you go to a hair loss expert or a derm before you do ANYTHING. I live in Canada and I need to go to one in order to get a prescription for finasteride, I have an appointment in March and we will see then if he thinks I have anything to worry about. But maybe to ease your worries, I've posted videos / photos on here before and I've got a lot of differing opinons, 60% of people will say I have nothing to worry about, others will say I have very early signs of male pattern baldness. Last week I went to a hair loss expert and he told me I was fine - this, however, doesn't always alleviate the worries.
It's important to remember that context is key - in my case I've always had fine, dark hair and a weird cowlick crown. Without context it may appear that my crown is thinner, but with context there isn't really any noticeable change.
Long winded
the TLDR of it is that schedule an appointment with a derm. Don't take everyone on here TOO seriously, but don't disregard their opinions when they give you it either.
I've said this before on here and I'll say it again, nobody here can diagnose you with male pattern baldness over the internet, all they can do is give you their own opinions. Don't jump on finasteride because somebody on here tells you, but also don't ignore what you don't want to hear. You're lucky you're being proactive. Personally I recommend you go to a hair loss expert or a derm before you do ANYTHING. I live in Canada and I need to go to one in order to get a prescription for finasteride, I have an appointment in March and we will see then if he thinks I have anything to worry about. But maybe to ease your worries, I've posted videos / photos on here before and I've got a lot of differing opinons, 60% of people will say I have nothing to worry about, others will say I have very early signs of male pattern baldness. Last week I went to a hair loss expert and he told me I was fine - this, however, doesn't always alleviate the worries.
It's important to remember that context is key - in my case I've always had fine, dark hair and a weird cowlick crown. Without context it may appear that my crown is thinner, but with context there isn't really any noticeable change.
Long winded
the TLDR of it is that schedule an appointment with a derm. Don't take everyone on here TOO seriously, but don't disregard their opinions when they give you it either.