ABSTRACT 
         
         The bicycle, an invention that provides joy and transportation to millions of people,
            can also be a source of disabling injuries and death. The victims of bicycle accidents
            are usually in good health and often young. Most of the fatal head injury cases are
            teenagers. In this article, I have chosen four areas of bicycle trauma that frequently
            brings the bicycle patient to the attention of a neurologist. These areas are (1)
            head trauma as a consequence of road collisions; (2) compressive ulnar neuropathy;
            (3) impotence, probably due to compression of the pudendal nerve or its branches;
            and (4) lightning-related bicycle injuries. The one thing that all four categories
            have in common is that they are often preventable. Helmet usage and common sense would
            lower the number of serious head trauma cases by 50%. Compressive ulnar and pudendal
            neuropathies can be prevented or reduced if the cyclist would frequently change his
            or her position in relation to the handlebar and saddle. In the majority of cases
            of compressive neuropathies, the symptoms improve if the patient takes a holiday from
            bike riding. Lightning injuries can be avoided or lessened if the cyclist takes proactive
            measures to limit his or her exposure during thunderstorms. These proactive measures
            include knowing the climate patterns of the area and knowing where the nearest safe
            shelter is located. 
         
         
         
            
KEYWORD 
         
         
            Head trauma - peripheral nerve injuries - lightning injuries - proactive measures