What is the reason for less menstrual flow with black color?

Patient's question:

Small amount, black, delayed by four days, lower abdominal pain for the first two or three days.、 results: no previous treatment history and effects: the first two menstrual cycles were normal. What medicine can treat this well? Recently want to have a child

Doctor's answer:

Hello, your symptoms should be caused by uterine cold. It is recommended that you see a traditional Chinese medicine practitioner for timely diagnosis, which can help you recover well and thoroughly.
Suggested treatment: Try taking Ai Fu Nu Gong Wan (Moxa Moxa Warm Uterus Pill) for medication. The effect should be quite good. People with uterine cold constitution often have insufficient fire energy, so if you notice signs of uterine cold, avoid cold foods and pay attention to keeping warm. Foods like milk, eggs, soy milk, pork liver, and spinach should be consumed more often.
For gynecological patients, in addition to medication for relief, it is also important to pay attention to self-care. For example, pay more attention to hygiene in the private area, and avoid sexual activity during medication. Lastly, it is advised that female patients undergo regular follow-up examinations!