The main deep neurovascular bundle at risk is the posterior tibial. This coupling between neuronal activity and blood flow is also referred to as neurovascular coupling. Raynaud's phenomenon and Paroxysmal hand hematoma are neurovascular disorders that affects the fingers. People with diabetes often develop diabetic neuropathy due to several metabolic and neurovascular factors. The neurovascular bundle which supplies the distal component is reserved and transferred proximally. Normal neurovascular bundles are not present in the distal parts. Those containing neurovascular tissue (nerves and blood vessels) may also be termed compartments. During the neurovascular assessment the measures between extremities are compared. The neurovascular tissue is carefully spared to preserve function and sensation. Mostly one neurovascular bundle can be identified, with no tendons present in the extra digit. There are two types of neurovascular bundles&colon; superficial bundles and deep bundles. The excision has to be very precise to spare the neurovascular bundles. Likewise joint pain at other locations and neurovascular compression can occur. Gartland III and IV are unstable and prone to neurovascular injury. The pulp is the neurovascular bundle central to each tooth, permanent or primary.