Symptoms Of Kidney Stones

A kidney stone is a hard crystalline substance in the shape of stones. They are also known as nephrolithiasis or renal calculus. These crystals are usually made of calcium oxalate, struvite, cystine, and uric acid. These kidney stones can form in the kidneys, ureter, urethra, and urinary bladder. When there is too little urine due to dehydration or increased stone-forming chemicals, crystals are formed. They attract other elements in the urine and begin to crystallize more and get bigger in size unless and until passed out through the urine. Whenever the renal stone moves down during urination, the patient experiences severe pain. Symptoms include severe low backache, loin-to-groin pain, frequent urination, difficult urination, abdominal pain, nausea, vomiting, etc. Small stones pass through the urine, but bigger stones need lithotripsy.