Early symptoms of cancer and cancer?

summary

According to the cell characteristics of new organisms and the degree of harm to the body, tumors are divided into benign tumors and malignant tumors, and cancer is the general name of malignant tumors. It should be noted that cancer and cancer are two different concepts. Cancer refers to epithelial malignant tumor. For example, the malignant tumor formed by the mucosa epithelium of large intestine is called epithelial carcinoma of large intestine, referred to as colorectal cancer. Formed by the skin epithelium called skin epithelial carcinoma, referred to as skin cancer and so on. Therefore, if the doctor says that someone is suffering from cancer, it means that the patient has a malignant tumor; If someone is suffering from gastric cancer, it means the cancer formed by the gastric mucosa epithelium of the patient. If the patient is suffering from gastric sarcoma, it means that this kind of malignant tumor is not formed by the mucosal epithelium, it may be caused by the malignant transformation of smooth muscle cells, or it belongs to the malignant lymphoma of the stomach. But generally speaking, he has cancer. So what are the early symptoms of cancer and cancer? Here are two diseases.

Early symptoms of cancer and cancer?

First, the early symptoms of tumor; Early tumors often have no systemic symptoms, or only slight fatigue, discomfort, loss of appetite, because the growth of the tumor in the primary lesion leads to changes in the anatomical structure and histomorphology of the site, resulting in corresponding functional changes. The size, shape, boundary, hardness, surface condition and relationship with adjacent tissues can be used as the basis for examination and diagnosis of tumor. The mass can cause secondary symptoms, such as pain, compression, ulcer, bleeding, infection, obstruction or dysfunction, etc., which make the patient feel uncomfortable and painful, especially when the tumor compresses and invades the nerve, there will be different degrees of pain.

Second, the early symptoms of oral cancer; Generally speaking, people who are used to smoking, drinking and chewing betel nut should go to the hospital for examination if they have the following symptoms, including: oral ulcer can't heal after more than two weeks; There was a mass in the mouth or neck; There were white spots or erythema in oral mucosa; Unexplained bleeding, accompanying pain or numbness in any part of the mouth; Difficulty or pain in chewing or swallowing; Gingival swelling causes poor fixation or discomfort of denture; The teeth are closed and the mouth cannot be opened. If you have oral leukoplakia, erythema, lichen planus, verrucous hyperplasia, submucosal fibrosis and other symptoms, or if the oral ulcer is not good for more than two weeks or even three weeks, you must go to the hospital for examination!

Finally, the early symptoms of esophageal cancer; The throat is tight and uncomfortable; It is easy to choke when swallowing; When eating, there is pain behind the sternum. Even when not eating, there is a feeling of foreign body or burning behind the sternum. There is often chest tightness and mucus vomiting. Especially for people over 35 years old, they should go to the hospital immediately for a diagnostic examination.

matters needing attention

According to the pathological form, growth mode and the degree of harm to patients, doctors divide tumors into malignant "cancer" and benign. As benign tumor and malignant tumor not only have different clinical manifestations, but also have different prognosis (the final outcome of the patient), once the tumor and the above symptoms are found in the body, they should seek medical treatment in time.