Kidney Stones

What Are Kidney Stones?

Kidney stones is a medical condition which is used to refer to the presence of stones in the kidneys. Also known as renal calculi, the stones are made up of hard deposits of salts and minerals which get stuck in the ureter, kidneys, urinary bladder, etc. 

Kidney stones can affect any part of the urinary tract and develop in either one or both kidneys. While the condition is common in people aged 30 to 60 years, and it can affect anyone at any age. Kidney stones can be as small as a grain of sand or as large as a ping-pong ball. Small stones usually pass naturally through the ureter whereas large stones may require surgical intervention. If you are experiencing symptoms, you can consult our Kidney Specialists in Kolkata for proper diagnosis and treatment.

There are different types of kidney stones depending on the substances they originate from. Most kidney stones are made up of calcium, oxalate, phosphate, uric acid, cystine (rare), and xanthine (rare). Knowing the kidney stone types can help determine the cause of stones and help prevent recurrence in the future. There are four types of kidney stones - 

  • Calcium stones -  These are the most common type of kidney stones which usually occur in the form of calcium oxalate. Calcium stones constitute about 80% of all kidney stones cases. A certain diet such as calcium supplements and metabolic disorders increase the amount of calcium or oxalate in urine. 
  • Struvite stones - Struvite stones are less common and usually occur due to a urinary tract infection. These stones can grow quickly and become large in size without apparent symptoms or warnings.
  • Uric acid stones - Uric acid stones form in people with a high animal protein diet. Certain genetic factors also may increase the risk of uric acid stones.
  • Cystine stones - These types of kidney stones occur in people with a hereditary disorder called cystinuria which causes the kidneys to create too much amino acid.

FAQs

Possible complications of kidney stones involve -

  • Recurrent stones
  • Kidney failure
  • Hydronephrosis
  • Sepsis 
  • Injury to the ureter
  • Urinary tract infection (UTI)
  • Abnormal bleeding during surgery
  • Intense pain
     

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