溃疡不愈:口腔溃疡的病程一般不超过两周,如果烧灼感、疼痛等症状超过两周仍不见好,需警惕口腔癌的可能。因为口腔癌常表现为溃疡的形式,四周边缘隆起,中央凹凸不平,并有坏死组织覆盖,疼痛明显。功能障碍:肿瘤可能侵犯张闭口肌肉和下颌关节,导致开闭口运动受限。 Ulcer healing: the course of oral ulcers generally no more than two weeks, if the burning sensation, pain and other symptoms are still not good for more than two weeks, be alert to the possibility of oral cancer. Because oral cancer is often manifested as the form of ulcers, around the edge of the uplift, the central uneven, and necrotic tissue coverage, the pain was obvious. Dysfunction: The tumor may infringe the closed mouth muscles and mandibular joints, resulting in limited opening and closing mouth movement.