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.
Special Notes. In young dogs, hip dysplasia usually is caused by conformational abnormalities that cause a âpoor fitâ between the head of the femur and the pelvic acetabulum, which in turn causes laxity of the hip joint.
Osteoarthritis may cause hip cysts. Hip cysts are usually detected on X-rays that are taken for other medical reasons. Trauma or injury to the hip may cause a hip cyst to form. Synovial cysts in the hip are often caused by rheumatoid arthritis.