Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to diagnose arthritis in rottweilers [title] Take notice of any limping. [step] Most signs of arthritis are related to mobility. Often one particular joint is affected more than the others, and this can lead to your dog limping or standing with less weight on the sore leg than his other legs.

Ending1: Gait, while slow, is still considered well taken care of and is something dogs often neglect. Inconsiderable mobility is also an indication of arthritis in a dog. Ending2: There are many different types of arthritis in dogs. Typical arthritis problems include : [substeps] Arthritis in the lower legs primarily due to inflammation in the forelimbs, which impedes the blood flow to the injured area and gives the injured tissue time to heal. Ending3: [substeps] However, in the early stages, your dog can often run freely and forget about the discomfort when he sees something to chase after. Therefore, it can appear that the lameness comes and goes and is worse before a walk than during the walk. Ending4: [substeps] There is a distinct difference between limping and sitting with the affected leg immobile. [title] Note if your dog appears to limp more frequently than usual.

Answer format: ending1/ending2/ending3/ending4