Vaginal ultrasound is also known as vaginal ultrasound. Contraindications for vaginal ultrasound include acute inflammation of the vagina, no history of sexual intercourse, and women with abnormal pregnancies. 1. Acute inflammation of the vagina: women suffering from vaginal inflammation is not recommended to do vaginal ultrasound, vaginal ultrasound needs to put a condom on the ultrasound probe to enter the female vagina, the process may be invasion of pathogenic bacteria, which will aggravate the vaginal inflammation of the infection. 2. No history of sexual life: women who have not had a history of sexual life are not recommended to do vaginal ultrasound to avoid hymen rupture. 3. Abnormal pregnancy: It is not recommended to do vaginal ultrasound if there is a state of placental hypoplasia during pregnancy. Women should consult with their doctors about specific precautions before having a vaginal ultrasound.