Does the success or failure of IVF implantation have anything to do with changes in uterine cavity depth?

Patient's question:

Medical history: Multiple attempts at IVF, failed implantation
Treatment history and effectiveness: The first IVF attempt was successful with a pre-transplant depth of 7.1 cm. Subsequent IVF attempts failed to implant each time, with hysteroscopy showing a depth of 7.5 cm.
What kind of help is needed: Please advise if the success of implantation in this IVF is related to changes in uterine depth.

Doctor's answer:

Hello, based on your description, if the test tube embryo does not implant, there may be intrauterine abnormalities. A hysteroscopy is relatively simple and generally does not have any significant impact. If anesthesia is used, it will not be painful. It is recommended to consult with a local doctor. Hysteroscopy can be performed 3-7 days after the menstrual cycle is clean. The specific next transfer time depends on your physical condition.
Moreover, hysteroscopy is a new, minimally invasive gynecological diagnostic and treatment technology that can be used for diagnosing, treating, and follow-up of intrauterine lesions. Hysteroscopy not only determines the location, size, appearance, and extent of lesions but also allows for detailed observation of the tissue structure on the lesion surface. It can also obtain specimens or locate under direct vision.