Functional uterine bleeding how many days

Written by Wang Jing Hua
Obstetrics and Gynecology
Updated on March 10, 2025
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Dysfunctional uterine bleeding can last for various durations; it varies from person to person. Some experience a shortened menstrual cycle, decreased period duration, prolonged menstrual duration, or excessive menstrual flow. Others may only have an extended cycle, and still others experience irregular, heavy, or prolonged bleeding. The duration of bleeding is not fixed and varies between individuals. When dysfunctional uterine bleeding occurs, endocrine tests are necessary, and corresponding treatment is required to address the issue. It is essential to seek treatment as early as possible.

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Written by Li Shun Hua
Obstetrics and Gynecology
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What causes functional uterine bleeding?

Functional uterine bleeding is commonly seen in adolescence and menopause, primarily caused by the absence of normal ovulation. Without ovulation, there is no production of progesterone, leading to irregular vaginal bleeding or heavy bleeding under the influence of estrogen. The main treatment method is menstrual regulation. For adolescent girls, menstrual regulation and ovulation induction treatment are needed, as this is caused by abnormal development of the gonadal axis. Progesterone can be used for menstrual regulation. In menopausal women, menopausal functional uterine bleeding mostly results from abnormal ovulation, essentially due to a lack of progesterone, so treatment with progesterone can be applied. (Please use medication under the guidance of a doctor.)

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Written by Liu Jian Wei
Obstetrics and Gynecology
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Functional uterine bleeding will be cured.

Functional uterine bleeding is not uncommon in clinical practice, and most cases of functional uterine bleeding can be cured. The cause of functional bleeding is primarily due to a disorder of various hormones in women, including estrogen and progesterone. Therefore, when a patient suspects functional uterine bleeding, it is necessary to conduct gynecological color Doppler ultrasound and sex hormone tests amongst others, to assess the levels of various hormones in the female endocrine system. Based on the different abnormal results, different treatment methods are selected. Generally, after hormonal adjustment, the hormone levels in most women will return to the normal range.

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Written by Shen Li Wen
Obstetrics and Gynecology
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Functional uterine bleeding refers to abnormal bleeding from the uterus.

Dysfunctional uterine bleeding in women is when the reproductive system has no organic lesions but is caused by internal and external factors that lead to abnormal gonadal axis function, resulting in irregular vaginal bleeding. For example, it is common for women to experience large emotional fluctuations due to family changes or other events, or changes in their work and living environments, excessive fatigue, frequent staying up late, etc., all of which can cause abnormal gonadal axis function. Furthermore, some endocrine disorders in women, such as elevated blood glucose levels and abnormal thyroid or adrenal gland function, can also affect the function of the gonadal axis and cause dysfunctional uterine bleeding.

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Written by Liu Jian Wei
Obstetrics and Gynecology
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Is there a treatment for functional uterine bleeding?

Functional uterine bleeding is not considered a complex or difficult condition in the field of obstetrics and gynecology. Therefore, when a woman suffers from functional uterine bleeding, treatment is possible. It is recommended that patients seek consultation at the gynecology clinic of their local hospital, undergo gynecological ultrasound and sex hormone tests among other related examinations, and adopt different treatments based on the results of these tests. Clinically, hormonal medications are commonly used for treatment. Many women experience significant improvement in their functional uterine bleeding after one to two treatment cycles. Most women will regain regular menstrual cycles.

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Written by Liu Jian Wei
Obstetrics and Gynecology
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How is functional uterine bleeding treated?

Functional uterine bleeding is a common endocrine disorder among women. When functional uterine bleeding occurs, it is recommended that the patient visit a local hospital to determine the type of functional uterine bleeding. Functional uterine bleeding can be divided into ovulatory and anovulatory types, and the treatment plans for different types vary. Therefore, identifying the type is key to how it is treated. Currently, oral hormonal medications are commonly used to treat functional uterine bleeding clinically.