Background: Abnormal hysteroscopy, laboratory testing, imaging, and other diagnostic procedures may all be necessary to determine the cause of abnormal uterine bleeding (AUB), which is defined as bleeding from the uterus that varies in frequency, regularity, length, or quantity as typically reported by the woman. The purpose of this study is to evaluate the value of chromo hysteroscopy in diagnosing and treating abnormal uterine bleeding in women. The Components and Procedures: Over the course of a year, 115 women with AUB problems were surveyed at the outpatient clinic of the Department of gynaecology and obstetrics at Benha University's department of medicine. Chromo hysteroscopy, performed with 5 ml of 1% methylene blue, was performed after conventional hysteroscopy. Distinct staining patterns seen. Staining that was concentrated in one area was termed positive, while staining that was more evenly distributed was regarded normal. These results were compared to those that had already been observed (on conventional hysteroscopy). Differentially stained regions were sampled for biopsies. The correlation between histopathology and hysteroscopic and chromo-hysteroscopic results was investigated. It was determined that chromo hysteroscopy had a high rate of success in diagnosing endometrial illness. The percentages for sensitivity (92.54%), specificity (83.33%), PPV (88.57%), and NPV (-92.54%) are as follows: (88.89 percent ).