Patient's question:
Here is the translation of your text into English, with the return characters kept as they are:"Just a few days before my period, it was yellowish-brown and had clots. I'm asking, what are the causes of irregular menstruation and reduced menstrual flow?"
Doctor's answer:
A normal menstrual cycle is between twenty-one and thirty-five days, menstrual volume is between thirty to fifty milliliters, and the duration of the menstrual period is three to seven days. If the menstrual volume is low and the cycle is short, it is initially considered menstrual irregularity. Menstrual irregularity is related to endocrine disorders, high stress, qi and blood deficiency, etc. If convenient, it is recommended to have a one-time six-hormone test at the hospital to verify whether the menstrual irregularity is caused by endocrine disorders.