All surgical procedures require preoperative tests and labs to ensure a safe and smooth surgical procedure, and having a rhinoplasty is no exception. Before having a rhinoplasty, it is important to confirm the rhinoplasty surgical plan with your doctor and take different preoperative preparations, preoperative examinations and tests according to different surgical plans. For example, a relatively complex comprehensive rhinoplasty sometimes requires general anesthesia, which requires preoperative preparation according to the requirements of general anesthesia surgery. Usually, in addition to blood tests (routine blood tests, biochemical indexes, liver function, coagulation function, syphilis spirochetes, HIV, etc.), patients also need to undergo electrocardiograms, chest X-rays, lung function, cardiac ultrasound and other tests. After excluding other contraindications to surgery, the patient can have a general anesthesia rhinoplasty. However, general rhinoplasty is usually performed under local anesthesia, such as simple rhinoplasty or nasal tip heightening, nose reduction and other surgeries. Patients only need to undergo a relatively simple pre-operative examination. Do I need to trim my nose hair before rhinoplasty? Nose hair trimming is one of the most important steps in the preparation for rhinoplasty, but it is easily overlooked. This is because after surgery, there may be a small amount of blood seepage at the incision site. If not cleaned up in time and mixed with the nasal hairs, it will form a more noticeable blood crust at the incision site, affecting the healing of the incision. Some rhinoplasty surgery after the nasal mucosa will have edema, may lead to ventilation is not smooth, if there is a nasal hair cover will aggravate the ventilation is not smooth. This is where preoperative trimming of the nasal hairs becomes very important. Trimming the nose hairs before surgery can prevent poor breathing while keeping the intranasal incision clean and facilitating wound cleaning. There is no need for patients to trim their own nose hair before rhinoplasty. Before the surgery, the doctor or nurse will perform a professional trimming of the nose hairs for the patient. If the nasal mucosa is damaged by trimming on your own, it will not be conducive to the surgery. The patient only needs to keep the nose clean before surgery.