The cost of an oral biopsy is approximately$300 for the procedure and over$200 for the pathology. Many cases of new organisms or swellings or ulcers in the oral cavity that are not clear in nature require biopsy to clarify the diagnosis. Surgery is required to remove part of the diseased tissue and then send the pathological tissue for examination, the cost of surgery is about 300 yuan, and the cost of pathological examination is more than 200 yuan. If there are abnormal growths or swellings in the oral cavity with unclear boundaries and a clear diagnosis is needed, oral biopsy should be performed.