Injury. Booklice feed on molds and will overrun cereals and similar materials that support mold growth. Their presence, therefore, is a nuisance and can render some foods unfit. The starchy paste of wallpaper and books also can support mold growth or may be attacked directly by booklice.
Hip dysplasia is caused by a subluxation in the hip joint. This creates abnormal wear and erosion of the joint and as a result arthritis and pain develop. The disease process is fairly straightforward; the controversy starts when we try to determine what predisposes animals to contracting the disease.
Read more about DJD. Hip dysplasia: This is a genetic developmental disease that results in malformation of the hip joint (a ball-and-socket joint). Chronic inflammation of the hip joints occurs because of misalignment, and the cartilage in the joint gradually deteriorates, causing pain and inflammation.