What are the symptoms of lung cancer? 5 symptoms of lung cancer to pay attention to

The early symptoms of lung cancer are not very typical or obvious. The most common symptoms are respiratory diseases, such as common coughs. As the tumor develops, patients will also experience chest pain, and in the later stages, these two symptoms are the main ones. The following is an introduction to the symptoms of lung cancer.

1. Bone and joint symptoms: These symptoms are more common. Lung cancer cells can produce certain special endocrine hormones (xenohormones), antigens and enzymes, which act on the bone and joint parts, causing bone and joint swelling and pain, often involving the tibia, fibula, ulna, radius and other bones and joints. The ends of the fingers and toes often swell and become clubbed, and X-ray examinations can show periosteal hyperplasia.

2. Shoulder and back pain: Peripheral lung cancer often develops posteriorly and upwards, eroding the pleura, involving the ribs and chest wall tissue, thus causing shoulder and back pain. Such patients rarely have respiratory symptoms.

3. Hoarseness: Lung cancer metastasis compresses the laryngeal nerve, which can paralyze the vocal cord muscles and cause hoarseness. Since lung cancer metastasis can appear in the early stage and sometimes grow faster than the primary lesion, the clinical manifestations of metastasis can appear before the primary lesion.

4. Neurological symptoms: Brain metastasis of lung cancer may cause neurological symptoms such as headache, vomiting, sudden coma, aphasia, hemiplegia, etc. Because the lung symptoms are not obvious, they are often misdiagnosed as cerebral thrombosis or brain tumors.

5. Male breast enlargement: About 10%-20% of male lung cancer patients have breast enlargement, some have unilateral enlargement, but most have bilateral enlargement, and this symptom appears about a year earlier than other lung symptoms such as cough, blood in sputum, chest pain, and shortness of breath. This is because some lung cancer cells can secrete chorionic gonadotropin, which can cause breast tissue hyperplasia and breast enlargement.

Clinically, some lung cancer patients experience chest pain as the first symptom, but the pain is not single in type and may include dull pain or muffled pain. Another point that needs to be pointed out is that the symptoms of lung cancer are actually more obvious than those of other malignant tumors.