Usually the thin endometrium found at hysteroscopy cannot be implanted.
Since the endometrium is the site of implantation of the fertilized egg, after implantation, it connects with the embryo through the placenta to provide nutrients to the embryo to ensure its normal development. If the endometrium is thin, it may affect the implantation and development of the embryo, which may lead to unsuccessful implantation and miscarriage, so embryo transfer is not recommended at this time.
Generally, if the endometrial thickness is between 7 and 12 mm, and the endometrial echogenicity is uniform, the embryo can be transferred at this time. If the endometrium is more than 12mm with uneven echogenicity, endometrial hyperplasia and endometrial polyps should be guarded against, and if necessary, cervicoscopic examination and treatment are required. Consult your doctor for details.