When someone is told they need dialysis, it can be overwhelming. Many patients and their families worry that life will never be the same. The good news is that with the right treatment and medical guidance, many people on dialysis continue to live active and meaningful lives.
In this article, I’ll explain dialysis in simple terms so you can better understand what it is, why it is needed, and what to expect.
What Do Our Kidneys Do?
Your kidneys are two bean-shaped organs located in your lower back. They quietly work around the clock to:
- Remove waste products from your blood
- Remove extra water from your body
- Maintain the balance of salts and minerals
- Help control blood pressure
- Keep your bones healthy
- Produce hormones that help make red blood cells
Healthy kidneys filter nearly 150–180 litres of blood every day.
What Happens When the Kidneys Stop Working?
Sometimes, because of conditions such as chronic kidney disease (CKD), diabetes, high blood pressure, or severe kidney injury, the kidneys lose their ability to clean the blood.
When this happens, waste products and excess fluid build up in the body. This can cause:
- Swelling of the feet and face
- Breathlessness
- Poor appetite
- Nausea and vomiting
- Extreme tiredness
- Difficulty sleeping
- Confusion in severe cases
If kidney function becomes very poor, dialysis or a kidney transplant may be needed to keep the person healthy.
What Is Dialysis?
Think of dialysis as an artificial kidney.
Dialysis is a treatment that removes waste products, excess water, and harmful toxins from your blood when your kidneys can no longer do the job properly.
Although dialysis performs many important functions of the kidneys, it cannot completely replace healthy kidneys. That is why regular treatment and careful follow-up with a nephrologist are essential.
Who Needs Dialysis?
Not every patient with kidney disease requires dialysis.
Dialysis is usually recommended when:
- Kidney function has declined to a very advanced stage
- Waste products are building up in the blood
- Fluid overload causes swelling or breathlessness
- High potassium levels become dangerous
- Symptoms of kidney failure start affecting daily life
Your nephrologist will decide the right time to start dialysis based on your overall health, symptoms, blood tests, and kidney function—not just a single laboratory value.
What Are the Different Types of Dialysis?
1. Hemodialysis
This is the most common type of dialysis.
Blood is taken from your body through a special access, cleaned using a dialysis machine, and then safely returned to your body.
Most patients undergo hemodialysis about three times a week, with each session lasting around four hours.
2. Peritoneal Dialysis
In this type, the lining inside your abdomen acts as a natural filter.
A special dialysis fluid is introduced into the abdomen through a small tube. After absorbing waste products, the fluid is drained and replaced with fresh fluid.
Many patients appreciate peritoneal dialysis because it can often be performed at home, allowing greater independence.
Your kidney specialist will help determine which option is most suitable for your lifestyle and medical condition.
Is Dialysis Painful?
This is one of the most common questions patients ask.
The dialysis procedure itself is generally not painful. Some patients may experience mild discomfort when the needles are inserted during hemodialysis, but most people adjust well over time.
The dialysis team closely monitors patients throughout every session to ensure comfort and safety.
Can People Live a Normal Life on Dialysis?
Yes.
Many people continue to:
- Work
- Travel
- Spend time with family
- Exercise
- Enjoy their hobbies
Living well with dialysis requires regular treatment, taking medications as prescribed, following dietary advice, and attending scheduled medical reviews.
Is Dialysis Permanent?
Not always.
If kidney failure is temporary, such as after a severe infection or acute kidney injury, dialysis may only be needed for a short period until the kidneys recover.
However, patients with permanent kidney failure usually require long-term dialysis unless they undergo a successful kidney transplant.
How Can You Stay Healthy on Dialysis?
Simple habits can make a big difference:
- Never miss dialysis sessions.
- Take medicines exactly as prescribed.
- Follow your recommended kidney-friendly diet.
- Limit fluid intake if advised.
- Keep diabetes and blood pressure under good control.
- Attend regular follow-up visits with your nephrologist.
When Should You Consult a Kidney Specialist?
Seek medical advice if you have:
- Diabetes or high blood pressure
- Swelling in your feet or face
- Persistent tiredness
- Reduced urine output
- Blood or protein in the urine
- A family history of kidney disease
- Abnormal kidney function tests
Early diagnosis and treatment can often slow the progression of kidney disease and may delay or even prevent the need for dialysis.
Final Thoughts
Being told you need dialysis can be frightening, but it is important to remember that dialysis is a life-saving treatment. With expert medical care, the right support, and a positive outlook, many patients continue to lead fulfilling lives.
If you or a loved one has been diagnosed with kidney disease, don’t ignore the warning signs. Early consultation with an experienced nephrologist can help preserve kidney function and ensure timely treatment.
Dr. Vinod Kumar K
Lead Senior Consultant – Nephrology
Specialist in Chronic Kidney Disease, Dialysis, Kidney Transplantation, Critical Care Nephrology & Interventional Nephrology
If you are looking for an experienced kidney specialist in Bangalore or nephrologist in Bangalore for dialysis care, chronic kidney disease management, or kidney transplant consultation, book an appointment for personalized, evidence-based kidney care.