Can a weak kidney causes lower back pain
Only if the kidney is brused or has a problem with it. Please enlighten me on what you mean by a weak kidney. I was born with only one and still only have 1 and I am 19
Or you might be having a back spasm..
Or you may have kidney stones-Join the stone club -I have-It's not fun -
go to the doctor if you are not feeling well.
Kidney stones, kidney infections, and bladder/lower urinary tract infections can certainly cause back pain. See your doctor.