In recent years, the incidence of laryngeal cancer is getting higher and higher, which seriously endangers people's healthy life. Laryngeal cancer is easy to be found in the early stage, and relevant treatment can be carried out in time to reduce the harm caused to patients. Understanding the symptoms of laryngeal cancer is very helpful for treatment. So it is very important to understand the early manifestations. Let's take a look at the early symptoms of laryngeal cancer.
First, hoarseness: it is the most common symptom of laryngeal cancer. Laryngeal cancer is a tumor that grows on the vocal cords. Even if it is small, it will affect the voice and cause hoarseness. Therefore, if there is hoarseness of unknown cause and it lasts for more than two weeks, careful throat examination should be done and should not be taken lightly.
Second, abnormal throat sensation: foreign body sensation or swallowing discomfort, which is the symptom of supraglottic laryngeal cancer. However, this type of cancer, at the beginning, the symptoms are often not obvious, and it is not discovered until the later stage. Tracing its medical history may last for several months.
Third, cough with blood in sputum: Because tumor stimulation can produce irritating dry cough, patients often have a sticky feeling of mucus, so they always like it? Clear your throat? It is also a common symptom of laryngeal cancer. When you take a deep breath and clear your throat, you will find blood in the sputum. Generally, you will continue to cough in the middle stage, and then you will have symptoms such as blood in the sputum in the late stage.
Therefore, in the process of physical examination, patients with the following conditions should focus on the examination and investigation of laryngeal cancer.
Any hoarseness or foreign body sensation in the throat with unknown causes will not be reduced after symptomatic treatment, especially patients over 46 years old, accompanied by irritating dry cough, blood in sputum, sore throat, headache and earache, and dyspnea, so we should be highly vigilant; Cervical mass, excluding thyroid cartilage contour, thyroglossal periosteum, upper corner of thyroid cartilage, cricothyroid membrane, thyroid gland and other variations should also be examined; From the mandibular angle, lymph nodes are enlarged downward along the anterior edge of sternocleidomastoid muscle, which is hard without tenderness and reduces the activity; For those who smoke for a long time, have a family history of cancer, have some occupations, are exposed to radioactive substances and asbestos dust, and make dichromate, etc., we should focus on general survey and attach importance to diagnosis.
? So, what are the causes of laryngeal cancer?
(1) Smoking: Tobacco burning can produce tobacco tar, in which benzopyrene can cause cancer; And tobacco smoke can stop or slow cilia movement, congestion and edema of mucosa, make epithelial hyperplasia thicker and squamous metaplasia, which becomes the basis of carcinogenesis.
(2) Excessive drinking: Long-term stimulation of mucosa can denature it and cause cancer. When smoking and drinking * * * coexist, additive and overlapping carcinogenic effects may occur.
(3) chronic inflammatory stimuli such as chronic laryngitis or respiratory inflammation.
(4) Air pollution: Long-term inhalation of harmful gases such as sulfur dioxide and productive industrial dust such as chromium and arsenic is likely to cause laryngeal cancer.
(5) Virus infection: It is closely related to the occurrence of cancer. It is generally believed that viruses can change the nature of cells and cause abnormal division; Viruses can be attached to genes and transmitted to the next generation of cells to become cancerous. HPV- 16 and 18 have been considered to be related to the occurrence and development of laryngeal cancer.
(6) Precancerous lesions: laryngeal keratosis and laryngeal benign tumors, such as laryngeal papilloma, can become cancerous after repeated attacks.
(7) Radiation: Radiation can cause cancer when treating cervical tumors.
(8) Sex hormones: Relevant experiments show that the percentage of estrogen receptor positive cells in patients with laryngeal cancer is obviously increased.
Therefore, we should have regular physical examinations to ensure our health. After all, health is the most important thing.
(The picture comes from the Internet. )