Thin Uterine Lining
The thickness of the uterine lining builds during the follicular phase (pre-ovulation) of the menstrual cycle and its thickness is maintained during the luteal phase (post-ovulation) of the cycle. During menses, the build up of blood is shed. When the uterine lining is observed on ultrasound and shows to be less than 7 millimeters, it is generally accepted the endometrium is considered too thin for implantation. If you have not had an ultrasound and do not know if your lining is thick enough, a scant menstrual cycle with light flow occurring for less than three days is generally indicative of a thin uterine lining.
In general Chinese medicine terms, a thin uterine lining may be the result of poor quality blood or yin. Good quality yin and blood is necessary to fill the lining of the uterus and ultimately support implantation. Acupuncture can be used to help increase blood flow to the uterus and ovaries.