What causes black menstrual blood on the first day of menstruation?
Sep 13, 2023
Source: Cainiu Health
Dr. Liu Wan
Introduction
In general, "yima" refers to menstruation. Black menstrual blood on the first day of the period may result from normal physiological changes, hormonal imbalances, poor blood flow, uterine fibroids, polycystic ovary syndrome (PCOS), or other causes. Patients are advised to follow medical guidance for symptomatic treatment. If symptoms are severe, prompt medical consultation is recommended to avoid delaying diagnosis and treatment. Maintaining healthy lifestyle habits in daily life is also important.
Generally, "menstruation" refers to the menstrual period. The appearance of black discharge on the first day of menstruation may be caused by normal physiological phenomena, endocrine disorders, poor blood flow, uterine fibroids, polycystic ovary syndrome (PCOS), or other reasons. Patients are advised to follow medical guidance for symptomatic treatment. Specific analyses are as follows:
1. Normal Physiological Phenomenon
At the onset of menstruation, the endometrium has just shed and menstrual blood is minimal, which may result in black-colored discharge on the first day. This typically lasts for 1–2 days before returning to normal and is considered a normal physiological occurrence that does not require special treatment.
2. Endocrine Disorders
If patients frequently stay up late or have irregular eating habits, these factors may lead to endocrine imbalances, causing black discharge on the first day of menstruation. Patients may take traditional Chinese medicines that nourish the blood and regulate menstruation—such as Xiaoyao Pills or Qizhi Xiangfu Pills—as directed by a physician.
3. Poor Blood Flow
Excessive menstrual flow combined with poor outflow of menstrual blood, leading to prolonged retention in the uterine cavity, may also cause black discharge on the first day of menstruation. Under medical supervision, medications such as Yimucao Granules or Wuji Baifeng Pills may be used for treatment.
4. Uterine Fibroids
Patients with uterine fibroids may experience black discharge on the first day of menstruation, possibly accompanied by symptoms such as prolonged periods and lower abdominal pain. Treatment under medical guidance may include Gui Zhi Fu Ling Pills or Hongjin Xiaojie Capsules.
5. Polycystic Ovary Syndrome (PCOS)
The exact cause of PCOS remains unclear but may involve genetic and environmental factors. It can also lead to the aforementioned phenomenon. Patients are advised to follow medical recommendations and use medications such as cyproterone acetate tablets or clomiphene citrate tablets for treatment.
If symptoms are severe, prompt medical consultation is recommended to avoid delays in diagnosis and treatment. Maintain healthy lifestyle habits and avoid spicy or irritating foods, which may hinder recovery.
