Why my doc is so fond of dnc without trying hormone and other options for irregular periods nearing menopause at 49?

Rule out bad things: The value of a D&C or endometrial biopsy in a 49 yo with menstrual problems is to rule out abnormalities such as polyps of an overgrowth of tissue that can lead to cancer. If a hormonal issue is the cause then hormones can be used to treat the problem. A D&C (or endometrial biopsy done in the office) is a diagnostic procedure and it gives the doc information that helps in your treatment.