What is renal artery stenosis?

Renal artery stenosis is a serious medical condition in which the arteries that carry blood to the kidneys become narrow or blocked.

When these arteries become tight the kidneys do not receive enough oxygen and nutrients.

As a result their function starts to weaken.

The kidneys play a very important role in the body.  They remove waste products extra salt and excess water.

So when blood flow to the kidneys is reduced it can affect the entire body system.

•Why kidney function gets affected

The kidneys filter a large amount of blood every minute to remove waste through urine.

•When the kidney arteries become narrow

•Blood flow decreases

The kidneys cannot filter properly

Harmful waste starts building up in the body

•Blood pressure increases

If this problem continues it can lead to kidney damage or even kidney failure over time.

•Symptoms of the disease

This condition often develops silently especially in the early stages.

However some warning signs may include:

Sudden or uncontrolled high blood pressure (especially at a young or old age)

Blood pressure not improving even after taking medicines

•Poor kidney function in blood tests

•Swelling in legs ankles or feet

Difficulty breathing due to fluid in the lungs

Constant tiredness headaches blurred vision or changes in urine color

•Main Causes

The most common cause of renal artery stenosis is the buildup of fat cholesterol and other substances in the arteries.

This condition is called atherosclerosis which makes arteries hard and narrow.

Another important cause is fibromuscular dysplasia where the artery walls grow abnormally.

This is often a congenital condition and can affect younger people.

•Risk factors

Some factors increase the risk of this disease including.

•Increasing age

•Diabetes

•High cholesterol

•Obesity

•Smoking

•Lack of exercise

Family history of heart disease

People with high blood pressure should be especially careful.

•Prevention and treatment

If this condition is not treated on time it can lead to serious complications such as

•Long term high blood pressure

•Chronic kidney disease

•Kidney failure

•Need for dialysis

•Fluid buildup in the body

Early diagnosis and proper treatment can greatly reduce these risks and help protect kidney health.