No blood on the first day of menstruation
Jun 01, 2023
Source: Cainiu Health
Dr. Lv Aiming
Introduction
Menstrual period refers to the time of menstruation. The absence of bleeding on the first day of the menstrual period may be caused by physiological factors or pathological factors, such as cervical adhesion or polycystic ovary syndrome (PCOS). Specifically: if an individual is affected by psychological stress, environmental factors, or other influences leading to decreased estrogen levels in the body, it may result in delayed shedding of the endometrium.
Menstrual period refers to the time of menstruation. The absence of bleeding on the first day of the menstrual period may be caused by physiological factors or pathological factors, such as cervical adhesion or polycystic ovary syndrome (PCOS). Detailed analysis is as follows:
I. Physiological Factors
If an individual is affected by psychological stress, environmental changes, or similar factors leading to decreased estrogen levels in the body, it may result in delayed shedding of the endometrium, thus causing no bleeding on the first day of menstruation. This is considered a normal physiological phenomenon.
II. Pathological Factors
1. Cervical Adhesion
If the cervix becomes infected by pathogens, resulting in damage to the cervical mucosa, cervical adhesion may occur. This condition prevents the endometrial tissue from being expelled through the vagina, leading to the aforementioned situation. Patients should seek treatment at a qualified medical institution and may require surgical separation of cervical adhesions.
2. Polycystic Ovary Syndrome (PCOS)
The exact cause of PCOS remains unclear but may be influenced by genetic factors. When the normal function of the ovaries is impaired, they fail to secrete estrogen properly, which can prevent adequate endometrial thickening and lead to absent or reduced menstrual bleeding. In such cases, medications such as progesterone capsules (e.g., dydrogesterone tablets) may be prescribed under medical supervision.
In addition, the absence of bleeding on the first day of the menstrual period could also be due to hypothyroidism, premature ovarian failure, pituitary tumors, or other conditions. It is recommended that individuals experiencing abnormal symptoms seek timely medical evaluation.
