Sensory neuropathy is a progressive neurological disease affecting Border collies. Affected dogs present between two and seven months of age with clinical signs including Ataxia, abnormal gait, muscle Atrophy, knuckling of the paws, and hyperextended limbs. Urinary incontinence and regurgitation may occur as the disease progresses. Affected dogs lose feeling in all limbs and develop an inability to recognize the position of their limbs in space. Hind limbs tend to be more severely affected than front limbs. Affected dogs will often chew on their lower limbs and feet as they lose feeling, resulting in severe wounds. Affected dogs are often euthanized within 18 months of diagnosis due to quality of life concerns.