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Caliectasis: Causes, Symptoms, and Treatment

caliectasis-causes-symptoms and treatment

Caliectasis refers to the dilation or enlargement of the calyces, the structures in the kidneys responsible for collecting urine. In this blog, we’ll explore the causes, symptoms, diagnosis, and treatment options for caliectasis, providing valuable insights into this condition and its impact on health.

What is Caliectasis?

Caliectasis is a condition that impacts the calyces of the kidneys, which are the starting points for urine collection. Normally, each kidney has 6 to 10 calyces situated on its outer edges. In caliectasis, the calyces become enlarged and swollen due to an accumulation of excess fluid. This condition is typically triggered by an underlying kidney-related issue like a urinary tract infection (UTI). Caliectasis can only be identified through diagnostic testing, and many individuals with this condition are unaware of it until undergoing testing for other reasons.

What are the Types of Caliectasis?

Caliectasis, the dilation of renal calyces, encompasses various types with distinct etiologies, like:

  • Obstructive Caliectasis: Caused by urinary tract obstructions like stones, tumours, or strictures.
  • Non-Obstructive Caliectasis: Resulting from conditions such as chronic pyelonephritis or congenital abnormalities.
  • Acquired Caliectasis: This develops due to infections, kidney stones, trauma, or surgeries.
  • Congenital Caliectasis: Present from birth, often linked to developmental kidney or urinary tract issues.

What are the Symptoms of Caliectasis?

Caliectasis itself typically does not present symptoms. However, symptoms may manifest from the underlying condition causing caliectasis.

Common signs of kidney issues include:

  • Presence of blood in urine
  • Abdominal pain or sensitivity
  • Difficulty urinating
  • Heightened urge to urinate
  • Presence of pus or foul odour in urine

What are the Causes of Caliectasis?

Caliectasis typically results from conditions affecting the kidneys, such as:

  • Bladder cancer
  • Kidney blockage (often due to a congenital defect)
  • Renal fibrosis
  • Tumours or cysts in the kidneys
  • Accumulation of urine (hydronephrosis)
  • Kidney infections
  • Kidney stones
  • Tuberculosis affecting the kidneys or urinary system
  • Kidney cancer
  • Urinary tract infections (UTIs)
  • Obstruction of the urinary tract

What are the Complications of Caliectasis?

If not addressed, conditions resulting in caliectasis may lead to serious complications such as kidney failure, where the kidneys sustain irreparable damage. Depending on the extent of damage, a kidney transplant or dialysis may be required. Additionally, caliectasis associated with a urinary tract infection (UTI) or obstruction (UTO) can heighten the risk of developing kidney disease.

How is Caliectasis Diagnosed?

Caliectasis is frequently identified alongside other kidney-related conditions. Initially, your doctor will inquire about any symptoms you are experiencing and conduct a physical examination to assess swelling and tenderness around your kidneys. Subsequently, they will likely utilise a diagnostic procedure such as:

  • Cystoscopy: This involves using a camera inserted through the urethra to examine your kidneys and bladder.
  • Ultrasound: An abdominal ultrasound can reveal excess fluids or foreign objects in your kidneys.
  • Urography: This combines a CT scan with contrast dye to obtain a detailed view of your kidneys.
  • Urinalysis: Testing a urine sample.

Caliectasis is typically detected during one of these diagnostic tests.

What is the Treatment for Caliectasis?

Managing caliectasis varies based on its root cause. Approaches for addressing typical kidney issues involve:

  • Antibiotics to combat infections
  • Surgical interventions for removing tumors or kidney stones
  • Utilising nephrostomy tubes or catheters to facilitate urine drainage

How can you Prevent Caliectasis?

Preventing caliectasis involves several key measures, such as:

  • Hydration: Drink adequate water daily to maintain a healthy urinary system.
  • Manage Medical Conditions: Treat kidney stones, UTIs, or prostate issues promptly.
  • Healthy Diet: Consume a balanced diet low in sodium and high in fruits and vegetables.
  • Regular Exercise: Stay physically active to support overall health and kidney function.
  • Avoid Tobacco and Alcohol: Quit smoking and limit alcohol intake to protect kidney health.

Monitor medications, manage chronic conditions (e.g., diabetes, hypertension), and schedule regular health check-ups. Recognize symptoms like flank pain or changes in urination for early detection and treatment.


Caliectasis is a significant medical condition involving dilation of the renal calyces. Understanding its causes, symptoms, and management is crucial for timely diagnosis and effective treatment to prevent complications and promote renal health. Early intervention and ongoing monitoring are key to managing caliectasis and optimising patient outcomes. It is always advisable to seek medical help from a urologist. Timely care and help can ensure an appropriate diagnosis and treatment of your condition.  At the CK Birla Hospital, we ensure patients get holistic medical support which includes treatment in a compassionate environment. This patient-centric approach not only helps patients heal better but also ensures they are aware of the preventive measures as well. In case you need to consult a urologist, reach out to us, or book a direct appointment with nephrologist .

FAQs About Caliectasis

Is Caliectasis a Serious Condition?

Caliectasis can be serious depending on its underlying cause. It refers to the dilation of the calyces in the kidney. Diagnosis and management should address the specific underlying condition.

Can Caliectasis Cause Kidney Damage?

Yes, caliectasis can potentially cause kidney damage if it’s due to an underlying condition like kidney stones or obstruction. Timely diagnosis and treatment are important to prevent complications.

What are the Risk Factors for Developing Caliectasis?

Risk factors for caliectasis include kidney stones, urinary tract obstructions (such as from tumours or strictures), congenital abnormalities of the urinary tract, and recurrent urinary tract infections.

Are There any Dietary Restrictions for Individuals with Caliectasis?

Individuals with caliectasis may benefit from dietary modifications to prevent kidney stone formation, such as increasing fluid intake and reducing sodium and oxalate-rich foods. Speaking with a healthcare professional is advised.

Can Caliectasis Affect Kidney Function Long-Term?

Caliectasis can affect kidney function long-term if it leads to persistent obstruction or recurrent infections, causing damage to the kidney tissue over time. Regular monitoring and management are essential.

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