Pus and blood leucorrhea is the leucorrhea with blood, which is a manifestation symptom of inflammatory manifestation of leucorrhea abnormalities and is a signal of female internal genital diseases, which should be taken seriously. Routine examination of leukorrhea can confirm the diagnosis. Cervical cancer, endometrial cancer, cervical polyp or submucosal myoma should be considered. The placement of intrauterine device can also cause bloody leucorrhea. Examination of pus and blood leucorrhea caused by cervical cancer: (1) Cervical smear: It is an important method to screen for early cervical cancer. Therefore, it is also called “cancer smear”. The two main forms of report are graded diagnosis and descriptive diagnosis. At present, most hospitals in China still adopt graded diagnosis, and the classification method of Pap smear is commonly used clinically: Pap smear grade I: normal; Pap smear grade II: inflammation, referring to individual cell nuclear heterogeneity, but does not support malignancy, the rest are IIA; Pap smear grade III: suspicious cancer; Pap smear grade IV: severe suspicious cancer. Pap grade IV: carcinoma. Since there are more subjective factors and no strict objective criteria among the 5 levels of Pap classification, it is gradually replaced by the TBS classification, which requires professional physicians to read and understand. Therefore, many hospitals in China now often use the function of local magnification of electronic colposcopy 10 to 40 times to stain the suspicious parts of the cervix, thus focusing on the extraction of material to improve the detection rate of lesions. (2) Colposcopy: Colposcopy cannot directly diagnose cancerous tumors, but it can assist in selecting the site for biopsy of the cervix. According to statistics, if biopsies can be taken with the assistance of colposcopy, the diagnostic accuracy of early cervical cancer can reach about 98%. Vaginal microscopy With the ability to magnify 100-300 times, the cervix is coated with 1% toluidine blue staining, and the cell structure can be observed, and the diagnosis can be classified according to the morphology, arrangement, size and nuclear size, morphology, coloring depth and capillary image of the cells. However, colposcopy cannot replace scraping cytology and biopsy because it cannot detect lesions at the squamocolumnar junction or in the extended cervical canal. (3) Conical hysterectomy: When the presence of invasive cancer cannot be confirmed by biopsy, conical hysterectomy can be performed. When cervical cell scraping examination is positive for many times, while multi-point biopsy and cervical canal scraping are negative, or it has been proved to be carcinoma in situ and cannot exclude infiltrating carcinoma, cervical conization can be performed and sent to pathology. Because there are different degrees of complications after conization, it is mostly not used in clinical practice at present, and can be replaced by total hysterectomy if it is used as a therapeutic procedure.