the average is 7.5 years according to a poll done last year, from 1st seeing a GP knowing that something wasn't quite right, to getting diagnosed with a lap op. Obviously some ladies must get seen to much quicker than that, because many are waiting a lot longer than that. My own wait was almost 30 years - and there are a number of forum members who have suffered as long as I did, or longer, and many more with well over 20 years before finally getting diagnosed in the UK.
Things are changing in that time for the better. Awareness of endo and what to do to get treatments is much easier to come by with the advent of the internet - and while long term waiters are skewing the statistics somewhat, there is still a lot more could and should be done to speed things up.
On the home page of the forum - click on All Polls, and you'll see and be able to take part in a variety of polls on your own experience with endo.
Questions such as how long to diagnose? How old were you when you first noticed something wasn't 'normal'? etc. The results of the Polls are quite an eye opener.
To get to the home page - click on the title endometriosisuk just under the green bar at the top of this page - then on the right hand side you'll see 'All Polls' and click on that.