What are the diagnostic methods for luteal phase deficiency?

Patient's question:

Menstrual flow is very little, the cycle is about 20 days.

Doctor's answer:

Okay, here is the translation, following your instructions:
I. Basal Body Temperature Measurement: Basal body temperature measurement is also one of the diagnostic methods for luteal phase defect infertility and is a simple and commonly used method for evaluating luteal function. Indicators such as a slow rise during the high-temperature phase and a dip in the middle of the high-temperature phase suggest luteal dysfunction.
II. Endometrial Histology Examination: Endometrial histology examination is also one of the diagnostic methods for luteal phase defect infertility. Generally, the collection time for the endometrium is recommended to be during the mid-luteal phase, specifically on the 7th day of the high-temperature phase, which coincides with the time of blastocyst implantation. If the endometrial histology shows a discrepancy of more than 2 days compared to the basal body temperature, luteal phase defect can be diagnosed.
III. Serum Progesterone Concentration Measurement: Serum progesterone concentration measurement is an important and reliable indicator for assessing luteal function. If a woman's serum progesterone concentration is above 5 ng/ml, it indicates ovulation. A level of 10 ng/ml or higher during the mid-luteal phase indicates normal luteal function, while a level below 10 ng/ml can be diagnosed as luteal phase defect. Therefore, serum progesterone concentration measurement is one of the diagnostic methods for luteal phase defect infertility.
Luteal phase defect is a major cause of infertility and habitual abortion, often characterized primarily by kidney deficiency and liver qi stagnation, or accompanied by insufficient qi and blood and phlegm-blood stasis. Therefore, Traditional Chinese Medicine treatment for luteal phase defect emphasizes tonifying the kidneys and nourishing the blood, as well as soothing the liver and resolving stagnation. Among these options, herbal pills such as Yu Gong / Pei Lin Wan are a good choice.

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