Other questions may also be asked. Any other symptoms should be reported. This slowly damages nerves over time. Diabetic neuropathy , or nerve damage from diabetes, is one of the most common causes of numbness. Sometimes, no cause can be found.
Prevention is related to the cause.
For instance, avoiding alcohol can prevent cases due to alcohol abuse. Safer sex practices can prevent many cases due to HIV . Many cases cannot be prevented. Diagnosis starts with a history and physical exam. This may be all that is needed to make a diagnosis.