Endometritis can not be detected by ultrasound if the symptoms are mild, but if the symptoms are more serious and combined with ultrasound, it can usually be detected. Endometritis is a common gynecological disease, mostly caused by sexual impurity and lack of attention to local hygiene, which can manifest as symptoms such as heavy leukorrhea, fever and abdominal pain. Gynecological ultrasound is generally used to check whether the ovaries are developing normally and whether there are fibroids in the uterus, but it is not specific for diagnosing endometritis. Therefore, if the symptoms of endometritis are mild, ultrasound usually cannot detect them. However, if the symptoms of endometritis are severe, such as fever, lower abdominal pain, leukorrhea, leukorrhea blood, etc., combined with ultrasound endometrial echogenicity, fluid in the uterine cavity, etc., it is usually possible to determine whether the patient has endometritis. If the above symptoms occur, attention should be paid and timely medical treatment should be sought.