Endometrium 7mm can normally transfer blastocysts.
Under normal circumstances the endometrium reaches 6mm or more can transfer blastocysts, if you want to improve the success rate, you can choose to transfer between 8-12mm endometrium, which can promote the development of embryos and reduce the failure rate.
The endometrium of 7mm is generally more suitable for embryo implantation thickness, basically will not have a greater impact on the normal implantation of fertilized eggs, if the endometrium is too thin or too thick may lead to implantation is affected, implantation failure and so on.
If you want to undergo IVF, you need to go to the doctor for regular checkups and choose the right time to undergo the IVF procedure after being evaluated by a professional doctor.