How to use hysteroscopy for differential diagnosis of functional uterine bleeding?

Hysteroscopy has become an indispensable means to identify the cause of uterine bleeding. With the rise of hysteroscopic technology, it has been used more and more widely in recent years. Its biggest advantage is that it can directly observe the pathological and physiological changes in the uterine cavity, locate and obtain materials, and the diagnostic accuracy is significantly higher than blind curettage. The adoption of continuous perfusion technology and television magnified image display technology makes the complex uterine cavity clear at a glance. Hysteroscopy can also be combined with B-ultrasound examination, and the two diagnostic technologies can be used together, which changes the local cause of hysteroscopy simply diagnosing intrauterine lesions and B-ultrasound simply diagnosing internal and external lesions of the uterine wall. Through one examination, you can fully understand the situation of the uterus, uterine wall and pelvic cavity, and can clearly diagnose organic lesions of the genitals except for internal and external genitals, providing reliable data for the diagnosis of dysfunctional uterine bleeding. Hysteroscopy and B-ultrasound combined examination method: moderately fill the bladder, and before the start of hysteroscopy, do B-ultrasound to understand the position, size, and other abnormalities and attachments of the uterus. The hysteroscope is slowly inserted into the uterine cavity under the guidance of B-ultrasound. At the same time, B-ultrasound observation is performed. With the intrauterine distention fluid and the full bladder as the control, the correct diagnosis of organic uterine lesions can be made. After the hysteroscopy, the endometrium is taken for histopathological examination to assist in the diagnosis. If no lesions such as endometrial