Each with four days in advance, what is the length of the menstrual cycle?

Patient's question:

No

Doctor's answer:

Hello, based on your description, it is likely that you have menstrual irregularities. This situation has a higher possibility of endocrine abnormalities. It is recommended that you go to the hospital for an ultrasound and check the six endocrine hormones to see the cause. After diagnosis, you can choose appropriate medication for symptomatic treatment.