The infection may move up the system to the bladder or to the kidneys. Men most at risk for a UTI include: 1  Those with abnormalities of the urinary tract, such as kidney stones or an enlarged prostate.  Those who have a catheter or tube placed in the bladder.
Familial (hereditary) amyloidosis is a genetic form passed down in families that often affects nerves and kidneys. Secondary amyloidosis (AA) develops along with a chronic infectious or inflammatory disease, such as tuberculosis or rheumatoid arthritis.
Many people who acquire the disease have a family history of rheumatoid arthritis. Although genetics alone does not appear to cause the disease, genetic makeup seems to make some people more vulnerable to developing rheumatoid arthritis. Gender and age are also risk factors.