We have already identified groups most predisposed to stone formation.
Predisposition can be biochemical or anatomical such as urinary tract structural abnormalities [3].
Biochemical predispostion to stone formation
These include:
Anatomical predispostion to stone formation
Other aetiologies
Other aetiologies may include:
Specific features to look for in the history should include: use of diuretics, high protein diet, family history of renal stones and history of recurrent Urinary Tract Infections.