My dog's back legs are weak when standing, uncomfortable, no limp. Why?

Thanks for using Petco Pet Education Center, formerly Petcoach! This may be due to a neurologic condition such as a herniated disc. I recommend that you have him evaluated by a veterinarian for further assessment and treatment. They would be able to check for this and treat him accordingly. Best of luck!

It sounds like what you are describing is weakness. Did your pup have a neurologic exam? What we look for is evidence of pain (although this can sometimes be inconsistent in pets), loss of sensation to the feet (does he fail to flip his foot back over when the top of his foot is placed down?), and presence or absence of reflexes. The results of these tests can help to determine if it's neurologic in origin and what portion of the spinal cord may be affected. Although, it can sometimes be hard to differentiate orthopedic from neurologic disease. Plain xrays of the spine are helpful to rule out any bony abnormalities, and sometimes we can see evidence of narrow disc spaces, but ultimately we cannot see the spinal cord, nerves leaving the spinal cord, or the soft tissues. If a neurologic problem is suspected an MRI is often needed. But, there are also some other conditions that can cause weakness that are metabolic in origin (has your guy had any senior lab work recently?) or related to loss of signaling to the muscles (for example a disease called myasthenia gravis) or related to a degenerative process such as degenerative myelopathy. If there is a component of pain detected on exam then anti-inflammatory pain medication may help. If you feel like things are getting worse it would be a good time to have a re-evaluation with your family vet. Another option as well, if a neurologic process is suspected, would be to have a consult with a veterinary neurologist. I hope this helps and thank you for using Petco Pet Education Center, formerly Petcoach!

He could have a torn the ligament in his knee, have back pain, or an arthritis flare up causing these symptoms assuming you didn’t see him get injured. I’m glad you’re taking him in soon. They will feel his hips, back and legs and may recommend x-rays. They will most likely put him on pain medication since he's probably not getting up due to discomfort. Many orthopedic problems can be managed with medications so hopefully with treatment he’ll recover quickly. Thanks for using Petco Pet Education Center, formerly Petcoach to help you care Cooper.

Hello, thank you for your question about Bentley. Based on the weakness and symptoms that you are describing it is possible that Bentley may be experiencing some mild pain from arthritis or could have strained a muscle/tendon. It is also possible that Bentley's back could be sore as this usually leads to signs of weakness in the hind limbs; however, this type of injury is much more common in smaller breed dogs. If Bentley's signs are more mild and he is otherwise acting ok I would recommend continuing to monitor him for the next 24-48 hours. If this weakness or soreness do not go away I would recommend having him seen by your veterinarian so that they can perform an examination and look for any sources of pain. They can then discuss the need for pain/anti-inflammatory medications if warranted. Hope this helps, good luck!

This is most likely from a bulging intervertebral disc pressing on the nerves to his legs. I recommend a veterinary exam and spinal X-ray to be sure. Then as long as he’s walking I recommend pain medication, muscle relaxers and I treat these dogs with laser and acupuncture. He needs to rest, no running or jumping and short slow leash walks for three weeks. Usually this will improve with treatment in three to four weeks. He also could rupture the intervertebral disc and become paralyzed. That is a medical emergency and he may need surgery by a specialist so he could walk again. Please take him in soon and get treatment. Thanks for using Petco Pet Education Center, formerly Petcoach to help you care for Armor.

At his age I would worry there is a injury affected his back or hips that is causing him to be weak and unsteady. If he is overactive and jumps frequently, he may have damaged part of his spine to cause swelling and compression on the nerves. The best thing to do in confine him so he does not continue to injury himself until you can get him to the vet for an evaluation and radiographs

Hello, sorry to hear about Skittles. There are certainly several things that can cause dogs to have problems moving their legs. What you're describing however, seems to be more likely associated with an injury to her back. Most commonly in dogs, they may "slip" a disk which causes compression to their spinal cord. There are other injuries that are not compressive such as an swelling due to autoimmune disease in the spinal cord, a stroke to the spinal cord, or a fibrocartilagenous embolism which is more associated with larger breed dogs. Again their are other possibilities such as if she sprained a muscle or hurt her knees. Due to the concern for a potential back injury, Skittles should be evaluated by a veterinarian promptly to ensure she does/does not have a back injury. There are 2 options if she does have a back injury, you may elect to treat conservatively with strict rest and at home medications for 4-6 weeks or you may elect to have a neurologist evaluate her. The neurologist may then recommend an MRI and surgery based on the MRI. I know this is a lot of information to understand/explain so shortly but I would start off by having her evaluated by your veterinarian soon. In the interim, keep her quiet and rested, (no jumping, running, rough playing), make sure she is urinating and defecating, and keep her low to the ground. Best of luck and hope this helps.