1. Ulcer does not heal
The course of oral ulcer is generally no more than two weeks. If the symptoms such as burning sensation and pain are not good after two weeks, it is necessary to be aware of the possibility of oral cancer.
because oral cancer often takes the form of ulcer, with raised edges around, uneven center, covered with necrotic tissue, and obvious pain.
2. Obvious pain
In the early stage, there is no pain or only local abnormal friction feeling, and the pain is obvious after rupture. As the tumor further invades the nerve, it can cause ear and throat pain.
Oral cancer usually metastasizes to the nearby cervical lymph nodes. Sometimes the primary focus is very small, even the symptoms are not obvious. However, metastatic cancer cells are found in the cervical lymph nodes.
therefore, if the cervical lymph nodes suddenly expand, the oral cavity should be examined.
The prevention of oral cancer in daily life should be as follows:
1. Avoid smoking, drinking and chewing betel nut.
do not get into the habit of smoking; it is better to stop smoking if you have already smoked, but not if you can’t.
Smokers also need to reduce alcohol consumption. Alcohol can be used as a solvent for carcinogens and promote carcinogens to enter the oral mucosa. If the oral hygiene habit is poor, it will create conditions for bacteria or mold to grow and reproduce in the oral cavity.
avoid chewing betel nut because there is a greater risk of cancer when tobacco and lime are mixed in betel nut.
2. Balance diet, reduce fat intake, increase vegetables and fruits.
increase intake of vitamin A, B, e and trace element selenium.
3. Keep good oral hygiene.
remove the residual root and crown, adjust the sharp tooth tip of the molar in time to avoid repeatedly biting the cheek and tongue.