After the development of lung cancer to the advanced stage, different metastases will occur in different parts of the body, and the difficulty of treatment will be increased after the metastasis occurs, and the metastasis can occur in brain, liver, bone, etc. For the symptoms and performance of lung cancer metastasis, this article mainly gives you a detailed introduction from the specific parts to which lung cancer will metastasize to. Patients with lung cancer will have the following metastases: 1. Brain metastasis: If patients with lung cancer have unexplained headache, vomiting or visual impairment, they should consider whether they have brain metastasis. It is common in small cell lung cancer and adenocarcinoma type. Headache is the most common symptom, vomiting mostly occurs when the headache is intense and is characterized by jet vomiting; visual impairment indicates that the tumor has affected the compression or invaded the optic nerve. Bone metastases: About 50% of patients will have bone metastases. Generally, bone metastases do not have too obvious symptoms in the early stage, while spinal metastases cause pain in the middle of the back or the lesion area, while bone metastases in the limbs or trunk cause limited pain in the area. Bone metastasis is not a direct cause of life threatening lung cancer patients, but if the tumor metastasizes to the weight-bearing bones of the body, such as cervical, thoracic and lumbar spine, it can cause serious consequences of paralysis. 3.Liver metastasis: One third of patients have liver metastasis. The main reason for liver metastasis is that the primary cancer cells, after shedding, will invade the liver through blood circulation and grow in the liver, and liver metastasis can be single or multiple nodal metastases. The most common symptom is pain in the liver area, which is a persistent rising pain, and may be accompanied by loss of appetite, indigestion and other signs of impaired liver function. What are the symptoms of lung cancer metastasis? In addition, there are also kidney and adrenal metastases, and less commonly, skin and heart metastases. Therefore, lung cancer must be treated early and timely to control the development of the disease!