Patient: On 07.9, I found a soybean-sized lump behind the root of my left ear, and now I have a 3.7 x 2.1 cm lump after having a child. If I need surgery, can I wait until 09.7 to do it? Can it be done with a speculum? Is minimally invasive surgery possible? Are there any sequelae (such as facial nerve)? Thank you very much! Ultrasound results: The left parotid gland is about 3.7×2.1cm, with a hypoechoic area of about 2.1cm*1.5cm, with clear boundaries, and a hypoechoic area of about 0.5×0.4cm. The right parotid gland is about 3.5*1.5cm, with uniform echogenicity. Doctor: “07.9, a lump of soybean size was found, now it is 3.7×2.1cm in size”, more than one year means that the lump is still growing fast. If the tumor is definitely a mixed tumor, surgery can be done later; if there is malignant change, it cannot be delayed. I would like to emphasize that it is very important to have no pain, and most of them are benign if they do not feel anything. If it is a tumor, surgery is necessary, there is no other way. Therefore, we do not recommend the so-called “minimally invasive, endoscopic” surgery, which will damage the facial nerve and cause unclear field of view, and the tumor will not be removed cleanly. Remember. Analysis: 1. If the lump is growing, it is recommended to go to the pathology department of Shanghai Cancer Hospital for fine needle aspiration cytology examination to clarify the nature, benign can be operated later; if it is malignant, don’t delay. 2. If it is a tumor, surgery is necessary, medication will not work. Therefore, it is not suitable for endoscopic and minimally invasive surgery, otherwise, surgery under unclear vision will undoubtedly increase the possibility of facial nerve damage and the tumor will not be easily removed.