* Hip dysplasia: This is a condition in which the hip joint develops abnormally, and it can cause limping, pain, and stiffness.
* Patellar luxation: This is a condition in which the kneecap dislocates out of its normal position, and it can cause limping, pain, and stiffness.
* Osteoarthritis: This is a degenerative joint disease that causes cartilage to break down and bone to spurs to form, and it can cause limping, pain, and stiffness.
* Soft tissue injuries: These include muscle strains, sprains, and bruises, and they can all cause limping.
* Foreign objects: If a foreign object, such as a thorn or a piece of glass, gets stuck in a dog's foot, it can cause limping.
* Infections: Infections of the bones, joints, or soft tissues can all cause limping.
* Cancer: Bone cancer and other types of cancer can cause limping.