How often should a diabetic do a ?home blood sugar test?

The more the better: Ideally minimum 4x per day: before breakfast, lunch, dinner and bedtime and 2 hrs after having a heavy meal. With control over a period of time regimen might be modified. The more intense your therapy the more you will be asked to test. The more information, the more efficent desicion making.

Depends: Diabetes is a broad label for problems of varying intensities. An unstable type one that has frequent hospitalizations needs frequent tests while an type 2 adult may get away with fewer. This is best worked out with your healthcare provider/treatment team who knows your case.