Question
i have a bulging disc in my c-4 upper neck. i have had it
for about 2 months now and i played football with it. i got
an mri done and my doctor said it wasn't to bad. when ever i
hit my shoulder or have a lot of pressure on my neck i get
numbness in my left arm that lasts about 5 minutes and then
goes away. this hasn't happened in about 2 months so i was
wondering if boxing or fighting would do any harm to my neck
or cause permanent damage. hopefully you can give me a good
answer based on my information. thanks.

Answer
Mike,
I would need to see pictures of your c spine to better  answer your question. If you do have a disc problem then repetitive trauma would potentially make it even worse.
I would highly recommend seeking out the services of a cervical spine specialist.
If you would send me your location I could see if I could find someone that may be able to help you.

Yours in Best Health,
Dr Robert Arnone
St Louis, MO