Hair loss timeline — when does it start, peak, and resolve?

mike_nyc said:

Hair loss update related to hair shedding: I experienced noticeable shedding starting around month 3.

Filing a mild objection. Mild because I might be wrong; an objection because nobody has addressed the case that does not fit. Pushing back on the anecdote-stacking. Twenty people reporting the same thing is twenty samples from the same self-selected pool, not twenty independent confirmations.

One concrete data point for the thread. One habit that pays for itself: post the method alongside the number. A figure without its method cannot be checked, and an unchecked figure is how this community accumulates folklore.

Dr.SurgeonPGH said:

Twenty people reporting the same thing is twenty samples from the same self-selected pool, not twenty independent confirmations.

There is a second half to this that has not been said yet. The honest answer is that the effect is real, the magnitude is contested, and the individual variation is larger than either. Those three things can all be true at once, and most arguments here are two people holding different parts of that.

Ask again with the specifics and you will get a better answer than this one.

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

Was that from a primary source or from a summary of one?

OP back with an update, since a thread like this is useless without one.

Closing the loop. The answer turned out to depend on the detail I had left out of the opening post, which is a lesson about how to ask rather than about the subject.