Children at earlier age are less susceptible to urinary tract infections, but there are some factors that may lead to stone formation. The study
was conducted to investigate the most important physiological and bacterial factors affecting the frequency of stone formation in some
children in Anbar province. This was done through the use of chemical variables in serum and 24 hours urine ( calcium, uric acid, citrate,
oxalate, potassium, magnesium, inorganic phosphorus, urea, creatinine, creatinine clearance, total pH and total volume), also detection the role
of chemical and bacterial analysis of the stone in the metabolic evaluation of kidney disease. The chemical analysis of the stone showed that
the uric acid stone was the highest with (49%), calcium oxalate (27%), calcium phosphate( 16% )and the struvite( 8% )in children aged (5-15)
year , Percentage of children with kidney stones less than 5 years were 20% , calcium oxalate compose 9.6% of the total other stones, the rest
of the species were 5% of uric acid struvite 3% and calcium phosphate 3 %. No rare stone were detected. When comparing the group of
patients with the control group calcium, uric acid, oxalate, sodium and phosphorus in the 24 hours urine, at a higher level than the control
group with a significant statistical difference, while citrate , magnesium, potassium and creatinine in the urine were at the lower level than the
control group with a significant statistical difference as well. At the same time, the group of patients has a higher serum creatinine than that of
the control group. It also has a lower creatinine clearance value and a significant statistical difference than that of the control group.
Understanding the factors involved in urinary the formation of kidney stone in children and the right investigations presenting ,will allow for
earlier recognition and assist in the prevention of the recurrence. Bacterial identification showed positive isolates of urease, including
Pseudomonas aeruginosa, Proteus mirbilis, Klebsiella spp., Staphylococcus aureus, and other negative tests, which included E. coli and
Streptococcus ssp., and identified of five bacterial species isolated from different types of stones. E.coli were the most predominant isolates
from the stones samples followed by Pseudomonas aeruginosa, Proteus mirbilis, Klebsiella spp., Staphylococcus aureus respectively.
محمد جبير مهيدي | Mohammed Jobair Muhaidi | 3553