Natural Killer Cells — hope or hype?

I remain concerned that when IVF doesn’t work, a patient is too often given a diagnosis of carrying high levels of Natural Killer (NK) cells in her uterus, preventing implantation. In fact, it’s far more likely to be a problem on the embryo side — often related to...

What is Endometrial Biopsy?

Endometrial biopsy (or “endometrial scratch”) is a technique that is increasingly being used as part of IVF treatment. It’s a relatively simple thing to do – it involves passing a catheter through the neck of the womb (the cervix) into the uterine cavity and taking a...

RIP the “Colorado Protocol”

When IVF doesn’t quickly work, patients become convinced that there is something wrong with their uterus or body that leads to the “rejection” of their embryos. Of course this may be true for some women, but in fact the problem is usually one on the side of the embryo...

IVF: One or two to transfer?

When a couple undertakes an IVF cycle we usually attain say up to a dozen eggs and following fertilisation and culture, there might ultimately be in the region of 1 – 4 applicable embryos at the day 5 stage. At that point, our usual advice is to transfer the best...

“It can’t do any harm…”

One of the commonest statements I hear about so-called natural therapies is they don’t do any harm. Many people have a degree of scepticism as to whether they do anything, but an understandable reluctance to move to high powered mainstream medicine and on the...