According to petMD, weakness of the hind limbs in dogs is a common symptom of degenerative myelopathy, a progressive disease that affects the nervous system and spinal cord. Degenerative myelopathy is more common in older dogs, and there is no specific cause for the disease. Additional signs include loss of muscle mass and exaggerated spinal reflexes.Know More
VCA Animal Hospitals explains that weakness of the back legs in dogs often occurs with lumbosacral syndrome, a condition that affects the lower parts of the spinal column. Lumbosacral syndrome is caused by pressure on the nerves that exit the spine. As the condition progresses, symptoms include pain and wincing when pressure is applied to the back and slow rising and lameness in the hind legs.
According to Kilgore Small Animal Hospital, intervertebral disc disease, also referred to as slipped discs, is a common condition in dogs that causes weakness of the hind legs and pain and stiffness. Slipped discs are more common in dogs with shorter legs and longer backs. If discs slip suddenly, it is referred to as acute disease. Discs can also slip in a slower fashion, leading to pinched nerves and chronic back pain. Slipped discs in dogs are often treated with steroids or surgery.Learn More
A dog that sheds excessively may be suffering from such ailments as parasitic or fungal infections, allergies, Cushing's disease, allergic reactions to medication, cancer or an immune disorder, according to WebMD. Dogs that lack proper nutrition are also prone to shedding more than normal.Full Answer >
According to petMD, localized involuntary muscle tremors can cause a dog's head to shake slightly. Involuntary muscle tremors can also cause a dog's entire body to shake. Localized tremors that affect only the hind legs are also common.Full Answer >
According to the Fairmount Animal Hospital, rectal bleeding in dogs can be the result of any number of diseases or disorders of the colon, rectum or gastrointestinal tract, including anorectal disease, rectal prolapse, intestinal parasites or colonic ulcers. The color and consistency of the blood helps to pinpoint the problem.Full Answer >
A dog's leg may shake because of nerve responses, according to MentalFloss.com. This is known as the "scratch reflex," occurring when an owner playfully rubs a dog's belly. The nerves register the touch as irritation, sparking an involuntary movement of the legs. It is an instant reflex to scratch itchy areas of the body.Full Answer >