Rib irregularity is an imaging term that describes the morphology of the rib cage due to fracture, deformity, etc. that results in an unsmooth rib surface. Undercorrection of the ribs is usually seen in the reported findings of X-rays. The causes of undercorrection of the ribs are often old rib fractures, congenital developmental malformations, and rib tumors. During the healing process of a rib fracture, a bone scab is formed, which can lead to an irregular surface on the rib cage. Congenital developmental deformities may present with rib ectropion and muscle laxity. Tumors of the ribs may be accompanied by pain in the ribs, a palpable mass in the area, and a feeling of pressure, among other things. When the imaging manifestation of rib irregularity is found, one should go to the hospital to be diagnosed by a specialized doctor and take appropriate treatment according to the specific situation.