Hair falling out at month 4 - freaking out

Adding the clinical framing, because it changes how the question reads. Whatever the answer turns out to be, the method for getting there is the same: state the assumption, do the arithmetic in public, and invite the correction. That is slower than asserting, and it is the only version that survives being wrong.

labquiet_amy said:

Say what you would expect to see if you were wrong, before you look.

Coming at labquiet_amy’s question from a different direction. It helps to ask what evidence would change your mind before you look at any. If nothing would, the discussion is not about evidence, and it is better to say so early than to spend nine posts discovering it.

The figures, for anyone assembling their own picture. For anyone reading later: the numbers in this thread are worth checking against a primary source before you act on them, including mine. Half the figures circulating in this community trace back to a secondary summary that dropped a qualifier.

One thing that is still open after labquiet_amy’s answer:

What would you measure differently if you were starting again?

Moderator note: a couple of off-topic posts removed. No action needed from anybody.