These days it is a lot less difficult to get Canadian medical marijuana, and many government regulations have been eased up on the use of marijuana for personal and medical use. If you have a specific physical condition or illness that your doctor believes could be eased with medical marijuana use, then you may qualify for it. Getting medical marijuana can be done once you get a valid prescription from a licensed therapist in your area. If your doctor believes that medical marijuana could help you in some way, then you will get that prescription.
Once you have your prescription and license, then you will need to find a valid and legal supplier of medical marijuana. This can actually take some time, so do not hesitate to research and check out a variety of sources. What you will want to find is very high quality medical marijuana from someone who is licensed to sell it. Another option that you have would be to grow it yourself, and if you follow the steps necessary to obtain your grower's license then you will be able to grow marijuana without purchasing from a third party medical marijuana supplier.