What are the symptoms and manifestations of tumors? Tumors can present a variety of clinical manifestations depending on their cellular components, occurrence sites and development degrees. Generally speaking, the symptoms of early tumor are not obvious, but after the development of tumor, the performance is more significant. Local symptoms of tumor 1. Masses are formed by the continuous proliferation of tumor cells. It is often the main reason for patients to consult the doctor, and is also an important basis for tumor diagnosis. During the examination, new masses can be found on the surface of the body or palpated in the deep part of the body, and enlarged organs (such as liver and thyroid gland) or lymph nodes can also be found. Generally speaking, benign tumors are slow growing, with clear boundaries, smooth surface and no healing with basal tissue (movable). Malignant tumors are faster growing, with uneven surface, and are not easy to move with the underlying tissues, and some of them have unclear boundaries. When the tumor causes compression, obstruction or destruction of the organ in which it is located and the symptoms appear, the mass can be found only through further examination by taking the symptoms as a clue, for example, when the mediastinal mass compresses the superior vena cava and causes obstruction of return flow, the patient will have symptoms such as swelling of the head, face, neck and upper chest wall, angry veins in the chest wall and neck, shortness of breath and cyanosis. Regardless of benign or malignant tumor, the use of general anti-infection treatment, external medicine or physical therapy cannot control the growth of the mass. 2. Pain is one of the common symptoms after the development of malignant tumor, and is also the main reason for patients to seek medical treatment. Due to the growth of tumor, causing the expansion and tension of periosteum or periosteum of the organ where it is located; or tumor causing obstruction of cavity organs (such as gastrointestinal tract and urinary tract); or tumor infiltrating pleura and retroperitoneal nerve plexus in late stage, pain can occur, which is mostly vague or dull pain at the beginning, often obvious at night, gradually aggravated and becomes unbearable pain, day and night. Paroxysmal pain is caused by obstruction of cavity organs caused by tumor; burning pain is often the manifestation of tumor complicating infection; radiating pain may be due to nerve trunk involvement, but the painful area is often without obvious tenderness. Benign tumor has no pain or less painful symptoms, but when the tumor increases and presses the neighboring organs and tissues, it can also show compressive pain symptoms, which should be distinguished from the pain of malignant tumor. 3.Pathological discharge Tumors in mouth, nose, nasopharyngeal cavity, digestive tract, respiratory tract and genitourinary organs may have bloody, mucous-blood or putrid discharge from the cavity once the tumor ulcerates into the cavity or is complicated by infection. This symptom should be highly valued, and the collection of cytological examination of these secretions can help to diagnose and distinguish from common acute and chronic inflammatory diseases. 4. Ulcers are formed by surface necrosis of malignant tumor. Under body surface or endoscopic observation, malignant ulcers are crater-like or cauliflower-like, the edges can be raised and turned out, the base is uneven, there are more necrotic tissues, tough, easy to bleed, and the bloody secretions have bad odor. 5. Bleeding From ulcer or tumor rupture. The bleeding of tumor on body surface can be found directly, while the small amount of bleeding of tumor in body is shown as blood sputum, mucus and blood stool or bloody leucorrhea; the large amount of bleeding is shown as vomiting blood, hemoptysis or blood in stool. Once tumor bleeding occurs, it is often repeated. 6.Obstruction Both benign and malignant tumors may affect the patency of respiratory tract, gastrointestinal tract, biliary tract or urinary tract, causing difficulty in breathing, abdominal distension, vomiting, jaundice or urinary retention. The symptoms of obstruction caused by malignant tumors are aggravated more quickly. 7.Other tumors such as lung cancer can cause pleural fluid, stomach cancer and liver cancer can cause ascites, bone tumor can cause pathological fracture, etc. For example, intracranial tumor can cause headache, visual impairment, facial palsy, hemiparesis, etc.; liver cancer can cause hepatomegaly or pain in liver area, as well as gastrointestinal dysfunction such as loss of appetite and abdominal distension; functional endocrine tumor; insulin tumor mainly shows hypoglycemia syndrome; pheochromocytoma mainly shows hypertension; parathyroid tumor shows calcium metabolism. The main manifestation of pheochromocytoma is hypertension.