Inflammatory nodules in the lungs can be regular in shape or appear irregular, depending on the situation. Lung nodules can be caused by a variety of reasons. Inflammatory nodules in the lungs are generally nodules produced by inflammatory stimuli in the lungs, mostly from chronic inflammatory stimuli, commonly including Mycobacterium tuberculosis infections or fungal infections. Inflammatory nodules are mostly regular in shape, with round, oval and other regular forms being more common, and can become smaller or disappear after fighting infection. In addition, inflammatory nodules in the lungs can also appear irregular. Inflammatory nodules can also be irregular if the infection is prolonged or the inflammation is not well controlled. If the lung nodules have uneven edges or burr signs, and the nature of the nodules cannot be determined by imaging, the nature of the nodules can be clarified by lung puncture or bronchoscopy to obtain pathologic tissue. If lung nodules are found, it is recommended to consult a doctor in time, complete the examination under the doctor’s guidance, clarify the cause of the disease and follow the doctor’s instructions.