Two-centimeter hemangioma on lung belongs to vascular malformation in lung, and different treatments are chosen according to the specific condition, and the treatment options mainly include regular observation, interventional therapy and surgery. 1. Regular observation: if the tumor does not have any clinical symptoms and is only detected by physical examination, no special intervention is needed for the time being, and the specific changes can be observed through regular CT review. 2. Interventional therapy: If the lesion increases in size during the review, specific blood vessels can be found, and sclerosing agent can be injected for embolization. 3. Surgical treatment: for the corresponding lesion accompanied by chest pain and coughing symptoms, radical resection surgery can also be considered. If the two-centimeter hemangioma on the lung increases in a short period of time and is accompanied by cough and chest pain, it is necessary to consult a doctor in time, and after confirming the diagnosis of the disease through clinical examination, carry out standardized treatment under the guidance of the clinician, so as to avoid delaying the disease.