What are the symptoms of lung cancer? The 5 most common symptoms of lung cancer

Lung cancer does not have obvious symptoms in the early stages of the disease. Some symptoms are similar to those of other diseases, so many people do not pay attention to them. Some symptoms occur in the lungs, while others occur outside the lungs. Now it is necessary to introduce the symptoms of lung cancer to everyone, hoping to help everyone understand the disease.

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 cause vocal cord paralysis and hoarseness. Since lung cancer metastasis can appear in the early stage and sometimes grow faster than the primary lesion, the clinical manifestations of metastasis may 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 thrombosis or brain tumors.

5. Male breast hypertrophy: About 10%-20% of male lung cancer patients have breast hypertrophy, some have unilateral hypertrophy, but most have bilateral hypertrophy, and this symptom appears about a year earlier than 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 hypertrophy.