Hi Meeka, just thought I would add my own recent experience. I have self referred to the Surry Park Clinic for the past 8 yers or so - I decided to have trans vaginal scans annually to check on the lining as i was taking hrt cyclically but trying to maintain the minimum dose of progesterone. The results have always been between about 5 and 6.1 and the lining was smooth and consistent. I was always told there was a greater tolerance when hrt was cyclically.
I started seeing an hrt consultant privately last summer and in December I started Utrogestan 100 vaginally continuously. I was on Estradot 50mcg and at start of year this was upped to 75mcg. I also had my annual scan and the lining was about 5.5 and all good. I was told that oestrogen patches at 75 and above meant 200mcg Utrogestan would be needed nightly. So I started on the one capsule of 200 and all was fine. With still low oestrogen levels I went up to Estadot 100 in the spring and a little while after I started to get light bleeding. I went for a further scan and the lining was now irregular and was 7.1.
The sonographer wsas great and said that as a precaution I must have this investigated. The hrt consultant said anything above 6 had to be referred to a gynae. I had been thinking of having a coil fitted as I was so fed up with the discharge from the Utrogestan (no other side effects from this 200 dose) and so within a few days I was booked in for hysteroscopy, I had the coil fitted, and had a smear test done while it was all going on 'down there'!
The gynae found glandular cells at the entrance to the cervix which, to use his words, he 'burnt away" (diatherm treatement??) and he said these were likely to have caused bleeding. I'm pleased to say that the biopsies all came back fine.
I hope yours proves to be straightforward. I continue with Estradot 100 for the time being - it does seem to be a high dose compared to what others are taking on this forum but I don't seem to have any of the side effects you may get from too much oestrogen.