Heel perception insensitivity may be caused by lumbar disc herniation, diabetes and other diseases, and the treatments include rest, physical therapy, medication and so on. 1. Lumbar disc herniation: The nucleus pulposus protrudes due to degeneration of lumbar vertebrae, long-term strain injury or trauma, which stimulates or presses the surrounding nerve roots, causing pain in the corresponding parts of the body. When sacral 1 nerve root is compressed, insensitivity of heel perception will occur. You can take bed rest, physical therapy such as baking and hot compresses, and can take methylcobalamin tablets to nourish the nerves and improve the symptoms. 2. Diabetes mellitus: It is a metabolic disease mainly manifested by chronic hyperglycemia, which can lead to distal nerve abnormality and peripheral vascular lesion of the lower limbs, manifested by sensory abnormality or obstruction, insensitivity to hot and cold sensation, and numbness of the limbs. Metformin hydrochloride extended-release tablets or glibenclamide tablets can be taken to control blood sugar, and methylcobalamin tablets can be used to nourish the nerves and improve symptoms. There may be other reasons for the insensitivity of the heel, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, and then give targeted treatment or treatment. All of the above drugs should be used under the guidance of a doctor, avoid self-medication.