A 4mm*3mm solid nodule in the lower lobe of the left lung requires regular follow-up, medication and surgery depending on the nature of the nodule.
1. Regular follow-up: If the nodule itself is small, and if the nodule is good in nature and persists for a long time, regular follow-up observation can be performed according to the doctor’s instructions.
2. Medication: If the nodule is considered to be inflammatory, oral antibiotics, such as moxifloxacin, may be prescribed; if the nodule is considered to be tuberculous, oral anti-tuberculosis drugs, such as isoniazid, may be prescribed.
3. Surgery: If the nodule has bad signs such as burr, lobulation, or rapid increase in size in a short period of time, it should be considered whether there is the possibility of neoplastic lesions, which can be evaluated by a surgeon to determine whether to carry out surgical treatment.
If there are solid lung nodules, it is recommended to consult a doctor to clarify the cause of the disease and then actively cooperate with the treatment.