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.
Definition of Hip Dysplasia. Hip dysplasia is a common, painful canine disorder that involves abnormal development and/or degeneration of one or both hip joints. The hips are ball-and-socket joints where the head of each femur (the long thigh bone) joins with a concave socket of the pelvic bone called the acetabulum.