Another case of back pain with "sand" grains in toilet after urination a few years ago. These were diagnosed as a type of kidney stones. An alternative cure for this type of kidney stones was used with success but problem reoccurs if "cure/treatment" is not resumed periodcally.
[disclaimer: the following treatment is only a single case example and does not in any way constitute any performance guarantee or any professional medical support]
Alternative "Cure/Treatment": every morning soon after waking .. fresh juice of 1 lemon in 4 to 6 oz of room temperature (preferably distilled) water. Nothing else except more water if required for about 1/2 hour after taking lemon juice drink. Relief from stones occured within 6 weeks and an ultrasound confirmed kidneys were clear of stones.
[disclaimer: the preceding treatment is only a single case example and does not in any way constitute any performance guarantee or any professional medical support]
In this case this juice treatment was maintained for several months with no back pain, but after discontinuing the morning lemon juice, the stones eventually returned. It appears that, although this juice treatment may correct the stone problem in the kidney, the kidney malfunction is not corrected.