thin endometrium
Endometrial lining measuring less than 7-8mm at the time of embryo transfer, potentially affecting implantation rates.
Full Definition
A condition where the endometrial thickness fails to reach the optimal range of 8-14mm during the mid-secretory phase or at the time of embryo transfer. Thin endometrium may result from previous uterine procedures, hormonal imbalances, inadequate estrogen exposure, or intrinsic endometrial factors. This condition is associated with reduced implantation and pregnancy rates, though pregnancies can still occur with thinner linings. Treatment approaches may include extended estrogen supplementation, low-dose aspirin, L-arginine, or other therapies to improve endometrial development.
Usage
Usage note: Specify measurement and timing; threshold values may vary between protocols and patient populations.
In Context
- "The cycle was cancelled due to persistently thin endometrium measuring 6.2mm on day 14." — cycle monitoring note
- "Treatment with vaginal sildenafil was initiated to address the patient's thin endometrium." — treatment plan