So last time fishing I accidentally tipped over in my canoe and sent my rods flying etc. I looked over my rods after and everything seemed fine.. well I just took a look now even closer and noticed one of my guides was broken.. it is the 4th one up from the bottom on my fenwick HMG 7ft2 medium rod. Can i still use the rod without any problems as all the others are perfectly fine? 

Yes, but it will perform better if you replace the guide.  It really isn't to hard to do, I've done it several times and I have no special equipment.  All you need is some braid, super glue, and epoxy.  Color the braid whatever color you want with a sharpie, or buy the thread specifically made for wrapping guides.

Check all the guides for hairline cracks in the guide rigs by using a cotton QTip.

If this rod has 9 to 10 guides your asking about one if the middle guides. If you remove the guide it should be ok until you replace it. Labor is about $7 + the guide. You can go online to see how it's done.

Tom

Yeah I believe it's 9 guides , thanks for that advice, I was going out tomorrow morning to fish as it's all the time I have this week and was hoping my rod wasn't unusable @WRB @IndianaFinesse

You can get away with it in a pinch but don't be boat flipping fish or horsing them out of weeds. 

13 minutes ago, Delaware Valley Tackle said:

You can get away with it in a pinch but don't be boat flipping fish or horsing them out of weeds. 

I fish in a canoe.. so no flipping needed ha. An yeah I'll make sure that doesn't happen, don't wanna snap it in half then be even more screwed 

Don't use super glue on your rod blank.

Tom