The 4 types of kidney stones and their common symptoms

Defined as hard and small mineral deposits that develop inside your kidney, kidney stones are made up of acid salts and minerals. The causes of this disease are not well-defined, although risk factors include drinking very little amounts of water and having a diet rich in sodium, protein and oxalate (chocolate and green leafy foods for example). However, knowing the type of kidney stone you suffer from can help ascertain the cause.

Here are the common types of kidney stones.

Struvite stones

This type of kidney stone is usually a response to certain kind of infection, such as a urinary tract infection for example. Characterised by rapid growth and a large size, struvite stones can develop without any warning signs.

Calcium stones

These are the most common type and are caused by a diet rich in oxalate. Risk factors for calcium stones include a diet consisting of plenty of nuts, chocolates and certain fruits and vegetables; metabolic disorders, high doses of vitamin d and intestinal bypass surgery, all of which can increase the amounts of calcium or oxalate in your urine, indicating the development of kidney stones.

Cystine stones

Those individuals with a hereditary disorder that causes their kidneys to produce certain amino acids (cystinuria to be precise) in excess are most likely to get cystine stones.

Uric acid stones

These are common in those whose diets are lacking in water or those who suffer from the excess fluid loss. People with a high protein diet and those who suffer from gout are also at risk. Genetic factors play a major role as well in increasing your risk of getting uric acid stones.

Apart from these, there are other rarer types of kidney stones that can also arise depending on a combination of an individual's lifestyle and genetic make-up.

However, to determine whether you're suffering from any of the aforementioned types of kidney stones, you must first know its common symptoms, which are:

  excruciating pain in your sides, and back, especially below your ribs

  feelings of pain in the groin and the lower parts of your abdomen

  intense and fluctuating pain that comes and goes in waves

  pain while urinating

  urine that is red, brown or pink in colour
  urine that's cloudy or has a foul odour

  vomiting and nausea

  constant urge to urinate

  increased frequency of urination

  urinating in small amounts

  chills and fever in case of an infection

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Related Tip: 20-Year-Old Indians Experiencing Kidney Failure! 4 Killer Reasons.

4 Types of Kidney Stones and Their Common Symptoms

5 reasons you will see blood in urine

The condition in which blood appears in the urine is known as hematuria. The loss of blood in this condition could be gross or microscopic depending on the cause of the condition. There are several causes why blood may appear in the urine. Whatever the cause may be, hematuria is mostly indicative of a serious medical condition.

Here are 5 reasons that cause blood to appear in the urine.

1. Infection

Infections like urethritis, pyelonephritis, cystitis or infection in any other body organ along the urinary tract is one of the most common causes of hematuria. Such bacterial infection in the urethra can also infect the kidneys and the urinary bladder. It results in the urge to urinate frequently and also causes blood to appear in the urine.

2. Kidney stones and bladder stones

Another reason that can cause blood to appear in the urine is the presence of stones in the kidney or bladder. These stones are crystallized minerals that are formed in the kidney or the bladder but fail to pass through the urinary tract. They cause blockage and pain and result in hematuria.

3. An enlarged prostate

An enlarged prostate is a common cause of the appearance of blood in the urine in men who are in their middle ages or older. Enlargement of the prostate gland causes the urethra to be compressed. This prevents the urethra from getting fully emptied while urination.

4. Polycystic kidney disease

PKD is a kidney disorder in which cysts filled with fluid form in the kidneys and impair the kidneys, causing them to fail entirely at times. It is an inherited disease and causes blood to appear in the urine.

In children who are between 6-10 years of age, kidney disorder after streptococcal glomerulonephritis can be a possible cause of hematuria.

5. Cancer

A cancerous kidney, bladder or prostate gland can also cause blood to appear in the urine. It is another major cause of hematuria but usually occurs in older patients.




5 Reasons You Will See Blood in Urine

Our kidneys act as filters which constantly flushes out toxins and excess minerals with water in form of urine. Urine contains lots of minerals which may precipitate and form stones. Urine has lots of pro-precipitating agents and anti-precipitating agents. When their balance disturbs due to some disease, stones start forming. These stones may often lead to abdominal pain which is referred to as renal colic. 

What exactly is renal colic? 

Renal or ureteric colic is the term used for typical pain in one side of abdomen in flank region starting from back and radiating forward towards lower abdomen up to scrotum. This is usually associated with nausea, vomiting and urinary discomfort. There may be blood in urine. 

How kidney stones are related to renal colic? 

Kidney stones usually form inside kidney and lies there without causing any pain. But whenever they are dislodged and stuck at mouth of kidney (pelvis) or anywhere in ureter, they block the passage of urine of that kidney. This causes swelling in kidney termed as hydronephrosis. This swelling in kidney causes renal / ureteric colic. This colic is protective phenomenon and tries to push out the stones. Small stones do come out in urine by this natural process. This spontaneous expulsion of small stones is common and many local practitioners used to get credit of it feigning benefit of their medicine. However large stones need some form of intervention to come out. Otherwise, they do harm to kidneys in long term. 

Symptoms of kidney stones along with renal /ureteric colic - 

Most stones which are lying in calyces of kidney are asymptomatic 
Nausea & vomiting 
Frequent urinary tract infections 
Fever with chills 
Foul smelling urine 
Hesitency, frequency and burning in urination 
Blood in urine (urine with a reddish, pink or brownish hue) 
Passage of small stones in urine 
Treatment of renal colic 

Treatment of ureteric/renal stones involves control of symptoms and stone removal. 

Expectant Treatment or Medical Expulsion Therapy: Small stones of less than 4 mm size usually pass on its own and some medicines like alpha-blockers and steroid hasten up their expulsion. Medium size stone (4-6 mm), sometimes passes with aid of these medications. But stones larger than 6 mm usually require intervention. 
Lithotripsy: This method involves breaking of stones by shock waves into small dusty particles which pass through urine on its own. This is usually suitable for stones upto 1.5 cm and lying in kidneys. This is non-operative treatment which can be done on OPD or Daycare basis. 
Ureteroscopy (URS): This method involves entry of very thin semirigid scope through urethra into ureter. Stone is broken by LASER and removed. This involves single day admission and spinal anaesthesia. 
RIRS- Retrograde Intra Renal Surgery: In this method very thin flexible scope in maneuvered through urethra into the upper ureter and pelvi-calyceal system of kidney. Stones in kidney or upper ureter are broken by LASER and removed. This is also done under anaesthesia and requires a day admission. 
Mini- PCNL: This method is suitable for large renal stones. In this technique, a small hole is made into the kidney through back and tiny scope is entered into the kidney. Stones are broken by LASER and removed. This is done under anaesthesia and require two to three days admission.

Renal Colic - Ways it Can Be Treated?

Kidney stones are caused when certain minerals of your urine are retained and are not fully released, causing them to amalgamate and form a stone. Passing a kidney stone is one of the most painful experiences you may face physically. Its magnanimity is often compared to childbirth, and those who are suffering from kidney stones dread having this experience. If you are not yet affected by kidney stones and do not want to, read further to know what type of diet you need to follow in order to prevent it.

1. Drink lots of water: On an average, a person must be drinking at least 3 liters of water every day. If you live in a more hot and humid climate, your water intake must be even more than that, so that on an average, 2.5 liters of urine is passed throughout the day, which decreases the chance of unnecessary retention of minerals from the urine and release them more easily from the body.

2. Continue eating foods rich in calcium: It is a common misconception that calcium accelerates the formation of kidney stones. Calcium is digested by the intestine, only excess calcium cannot be digested by the intestine and is sent to the kidney. Continue consuming calcium rich foods unless your doctor prescribes you against it. Make sure your diet includes enough dairy products such as milk, cheeses, etc., or other calcium rich foods, such as oats and broccoli.

3. Limit intake of oxalic acid: Oxalic acid is mostly found in foods obtained from plants. It restricts the absorption of calcium in the intestines and as a result, more calcium is passed into the kidneys; thus, forming calcium oxalate, or oxalate stones. Try to avoid foods, such as rhubarb, Swiss chard, nuts, tea, sweet potatoes, etc.;mainly leguminous plant products.

4. Decrease the ingestion of sodium salts, sugar and meat protein: Salts and sugars, mainly found in packaged foods are used to prevent them from expiring. They increase the release of calcium and oxalates into the blood, which thus increases the chance to develop kidney stones. Meat contains fibers which affect certain nutrients in the kidney, thus aggravating the formation of stones.

5. Increase the consumption of insoluble fibers: Insoluble fibers are those rough fibers which are not soluble in water during the process of digestion. They are found in rice, wheat, barley, etc., and are found to decrease calcium absorption in the kidney. They attach themselves to the calcium and oxalates, which enable them to be released as stool instead of urine.

Kidney Stones and Your Diet

As we all are aware that waste products in the blood are passed through urine. This filtering process is done by the kidneys as it separates the waste products including minerals and salts, which have to be passed out through urine. Many times, these minerals and salts get stuck in your urinary tract and over a long period, this forms kidney stones. They can vary in size from a ping pong ball to the size of a sugar crystal. They are not noticed till the time they cause a blockage. Sometimes, they cause immense pain if they start breaking or are pushed into the ureters (narrow ducts which lead to the bladder).

Symptoms of kidney stones:
1. Immense pain in the groin, belly and back.
2. Pain while urinating and urination occurring frequently.
3. Blood found in the urine (haematuria).
4. Vomiting and nausea.
5. Feeling extremely restless and not being able to lie still.

Kidney stones can also cause a kidney infection. Signs of kidney infection include:
Kidney stones can also cause infection in the kidneys as they block the passage of urine to the bladder by blocking the ureters. This leads to build up of the waste product which can result in an infection. Some of the symptoms of kidney infections could be:
1. Feeling chilly and shivering on your skin.
2. High temperature of 100.4 F (38C) or more.
3. A feeling of fatigue or weakness.
4. Immense diarrhea
5. Bad smelling and cloudy urine.

Types of Kidney stones:
1. Struvite stones: It contains ammonia and magnesium. It is usually quite large and horn- shaped.
2. Uric acid stones: Brown, smooth and softer than other kinds of kidney stones.
3. Cystine stones: They are yellow and don t look like stones. They usually resemble crystal.
4. Calcium stones: It is composed of calcium.

What causes kidney stones?
Kidney stones can occur due to several factors. It usually forms when urine generally contains crystal substances like uric acid, calcium and oxalate. Your urine might not be able to dilute these substances resulting in the perfect environment for the formation of kidney stones. In case you are showing any of the symptoms mentioned above, you should visit you doctor immediately before the problem can worsen.

Common Symptoms of Kidney Stones

Nephrotic syndrome is a type of kidney disorder wherein, the body passes out excess amount of proteins through urine, owing to the damage caused to the tiny clusters of blood vessels in the kidneys. The symptoms include putting on excessive weight as a result of fluid retention, foamy urine and severe swelling around the region of the feet, ankles and eyes.

Common causes behind it

Minimal change disease (also known as nil disease) leads to the abnormal functioning of the kidneys
Excess deposit of amyloid proteins in the organs, thus taking a toll on the filter mechanism of the kidneys.
Diabetes affecting the glomeruli (capillaries present in the nephrons of the kidneys).
Systemic lupus  erythematous causing chronic swelling of your kidney.
Membranous nephropathy wherein the membranes in your glomeruli thicken.
Infections such as malaria, hepatitis C, hepatitis B and HIV.
Medications to combat infections and nonsteroidal anti-inflammatory drugs.
Treatment Available

Kidney Biopsy is an essential part of disease assessment.
Angiotensin-converting enzyme inhibitors bring down blood pressure levels as well as the amount of protein discharged from the urine.
Water pills help control sweating, thus, increasing the fluid flushed from the kidneys.
Statins reduce cholesterol level.
Blood thinners such as anticoagulants lower the risk of blood clots.
Corticosteroids regulate the immune system and ease the inflammation that results from kidney disorders.
Incorporating certain lifestyle changes such as opting for lean proteins, cutting on the intake of fat in the diet and consuming lesser amounts of salt can treat inflammation and swelling.

Nephrotic Syndrome - 9 Surprising Causes Behind it

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