Studies have shown that older women are at high risk of developing pus in the uterine cavity, which is a disease category caused by the atrophy of the cervix due to the patient’s old age. The diagnosis of pus in the uterine cavity in elderly women can be made in terms of both causes and clinical manifestations: when the uterine cavity is probed with the uterine probe, the diagnosis can be established if there is pus flow, but the uterine cavity tissue should be taken lightly at the same time to understand the presence of malignant tumors. Sometimes, due to the scarring of the cervical canal and the bending of the canal lumen, the probe is not easily inserted, so patient operation is required. Clinical manifestations of pus accumulation in the uterine cavity in elderly women 1. The main symptom is lower abdominal cramping, which may be accompanied by systemic symptoms, fever and elevated white blood cell count. 2, chronic endometritis and the gradual formation of pus in the uterine cavity, can be no obvious symptoms. 3. Gynecological examination of the uterus is enlarged, soft and painful to the touch. There may be significant thickening of the parametrial connective tissue, and there may be inflammatory masses of the adnexa. Pus accumulation in the uterine cavity in elderly women is mostly a concomitant symptom of related diseases, divided into physiological and pathological, and the pathology is benign and malignant, so clinicians should pay great attention to it. Hysteroscopy and diagnostic scraping should be performed for pus accumulation in the uterine cavity of elderly women for whom anti-inflammatory treatment is ineffective or ineffective, so as to reduce misdiagnosis and misdiagnosis of pus accumulation in the uterine cavity of elderly women and to avoid leakage of diagnosis and treatment of malignant tumors in the uterus of elderly women. Ultrasound diagnosis has an important reference value for this disease. Ultrasound mostly indicates that there are anechoic liquid dark areas or scattered strong echogenic spots mixed with non-pure liquid in the uterine cavity, accompanied by an enlarged uterus, elongated and thinning uterine cavity, and sometimes the cervical and uterine body are at an angle, and the flowing sand wave is visible by compressing the uterus. Therefore, to determine the relationship between the uterus and the mass, a transvaginal uterine probe can be placed under ultrasound guidance after sterilization, and once the pus flows out, the diagnosis can be established. In conclusion, the diagnosis of diseases in elderly patients should be broadened and responsibility should be enhanced.