Menstrual period in Chinese is 月経. The first character means the Moon, meaning the period should corresponds with the Moon cycle. Many women start menstruating around the new moon and have a 28-day-cycle. Just to clarify, a menstrual cycle is from the first day of one period till the first day of the next. If the bleeding occurs every 4 weeks, your cycle is 28 days.
There should be 3-5 days of good blood flow, then it should taper off. The blood color should be deep red. It shouldn't be too dark or too light. Very little to no clotting, spotting, PMS, or cramps should occur.
If your period is anything but what I described, acupuncture and Chinese herbs can help. It is not a quick fix because we treat the root of the problem. It may take longer than you'd like, but it is very effective.
Licensed acupuncturist, herbalist, and a mom of two wonderful boys who taught me a lot about unconditional love