What Tanner Stage am I in?

Last updated on August 22, 2020



I wonder what Tanner stage I’m in. I’m 12 and I don’t see any length changes on my penis but it’s just my opinion and I get erections. People say my voice has deepened. Pubic hair is taking over my pubic area and some hairs are getting long and curly. I had one wet dream.

I also have another question. I think I stop producing semen because now when I masturbate I don’t even get a drop of white semen.


I hope you realize that I can only guess from the description of yourself but it sounds like you are in stage 3. One of the key distinctions of stage 3 is a rapid growth in height. You haven’t mentioned this, but the other signs indicate that you should be experiencing it or, if not, noticing it shortly. This is why I wrote the Tanner Stage Calculator for Boys. It asks all the detailed questions a person knowledgeable about the Tanner Stages would look for in making an assessment. Assuming you answer accurately, you will get a fairly close estimate of your current development.

Noticing the growth of your penis would be a bit difficult since the total growth over several years of development is only a few inches. People tend not to notice slight or gradual changes.

I don’t know how long it has been since your last ejaculation, but at your age and stage of development, your production of semen is going to be very unsteady for a while. It will probably take about a year before you are producing semen at a steady rate.