Preparing the Uterine Lining
You know the saying, “It all comes down to preparation”? Well, that advice can certainly be valuable when it comes to in vitro fertilization treatment (IVF), especially when readying the uterus for the transfer phase.
A lining of between 8 and 13 mm is considered ideal for IVF treatment. Anything less reduces the chances of a transferred embryo from implanting. Low estrogen levels and poor uterine blood supply are sometimes responsible for inadequate growth. Normally, the uterine lining grows 1 to 2 mm every other day in response to estrogen hormones. In general, the uterine lining will increase when undergoing IVF treatment with stimulation.
Depending on the form of IVF treatment you have chosen methods of preparing the uterine lining will vary.
Conventional
- Estrogen and progesterone hormones will be taken for about two weeks to thicken the lining. The estrogen can be administered orally or as an injection or via a transdermal patch. Progesterone will be administered on day of embryo transfer, be it a frozen or fresh transfer.
Natural
- In a natural cycle the embryo transfer takes place in the luteal phase at a time where the lining is appropriately undeveloped in relation to the status of the present Luteinizing Hormone. On occasion, the process is supplemented with oral estrogen and low dose natural oral progesterone.
Some fertility doctors suggest women undergoing IVF supplement their treatment with a fertility diet, acupuncture and yoga to possibly help prepare their uterus and uterine lining for the embryo transfer.