The 37-times capped Wales hooker is due to meet the surgeon who operated on his neck in June to decide whether or not he is able to carry on. McBryde, 35, a British Lion in 2001, played in four of the five Grand Slam games as a replacement but insists he will retire from the game if he fails to get the go-ahead in two weeks' time.
"I've had a scan and now I must wait to speak with the surgeon to see how things are going but I'm not putting any pressure on myself. Without medical backing there is no way I am carrying on because my health is more important than rugby," said McBryde.
"I really have no problems with making the decision to quit because it will be based on health grounds. I've had a longer innings than most and achieved a lot.
"It would obviously be nice to carry on, especially with the exciting season ahead, but if it doesn't happen then so be it."
Despite drawing with Ireland in the opening round of the RBS 6 Nations, Wales defence coach Shaun Edwards believes the championship 'is still in our hands' as he prepares his side to face Scotland at Principality Stadium tomorrow.
Meet the members of the WRU's inaugural Youth Board - after an online selection process which saw a host of high calibre candidates submit video applications the WRU has made its first 15 appointments.The board is made up of individuals aged between 16 and 21, and will meet for the first time at Principality Stadium on Monday 15th February.
The Wales Women's team headed to Dare Valley Country Park on a team bonding exercise as the entire squad got together for the very first time in preparation for this season's Six Nations championship which kicks off on Saturday with a clash against defending champions Ireland, in Donnybrook.