Health issues are typically addressed with the help of experts. However, when dealing with complex systems like the kidneys or urinary system, it’s crucial to know which specialist to consult. Urologists and nephrologists both focus on diseases related to these areas, but they have different roles. In this article, we will clearly explain the differences between these two specialists, their responsibilities, and the treatments they provide.
Health problems are often resolved with the guidance of experts, but when it comes to complex systems of our body, such as kidneys or the urinary system, it is very important to know which specialist we should consult. Both urologists and nephrologists treat diseases related to the urinary system and kidneys, but their scope of work is different. In this article, we will discuss in detail the scope of these two specialists, their role and the treatments they offer.
What is a Nephrologist?

Nephrology is the medical branch that mainly deals with kidney diseases. Nephrologists are physicians who treat kidney-related diseases and disorders. Kidneys are an extremely important organ of the human body, which works to remove toxins, excess water and electrolytes from the body in the form of urine. Apart from this, kidneys also help in controlling the body’s blood pressure, maintaining potassium and sodium levels and maintaining the balance of fluids in the body.
The main job of a nephrologist who takes care of kidneys is to diagnose and treat various kidney diseases. Kidney diseases include diseases such as chronic kidney disease (CKD), kidney stones, kidney cancer, and kidney failure (acute and chronic). Apart from this, nephrologists also specialize in treating high blood pressure, diabetes, and other related problems.
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When should you see a nephrologist?
- Kidney changes: If you feel blood or protein in the urine, or the urine color has become dark.
- High blood pressure: If the blood pressure is higher than normal and is not controlled by medicines.
- Family history of kidney disease: If someone in your family has kidney disease, then you should get regular checkups with a nephrologist.
- Diabetes: If you have diabetes, it can affect the kidneys, making the advice of a nephrologist necessary.
Tests performed by a nephrologist
- Kidney function tests: These tests are performed to determine if the kidneys are working properly. These include blood and urine tests such as serum creatinine, glomerular filtration rate (GFR), and blood urea nitrogen (BUN) tests.
- Kidney biopsy: This procedure involves taking a small tissue sample from the kidney to diagnose kidney disease.
- Imaging tests: Imaging tests such as CT scans, ultrasounds, and X-rays may be performed to identify kidney diseases.
What is a Urologist?

Urology is the medical branch that treats diseases related to the urinary system and reproductive organs. Urologists are physicians who diagnose and treat diseases of the urinary system and reproductive organs of men, women, and children. The scope of work of a urologist extends to the kidneys, bladder, ureters, and male reproductive organs.
Urologists treat a wide range of problems, including bladder pain, blood in the urine, and urinary tract infections. In addition, urologists also treat fertility problems in men, such as enlarged prostate, erectile dysfunction, and low sperm count or quality.
When to see a urologist?
- Bladder or urinary problems: If you have difficulty urinating, blood in your urine, or you have to urinate frequently, you should consult a urologist.
- Fertility problems: Men should see a urologist if they have erectile dysfunction, testicular pain, or a low sperm count.
- Pelvic pain: Women should consult a urologist if they feel pain in the pelvic area or their genitals feel heavy.
- Urinary tract infections: If you have frequent urinary tract infections, this is a urologist’s specialty.
Tests performed by a urologist
- Physical test: This is the most common test, in which the doctor asks the patient about their health history, medications, and medical conditions.
- Digital rectal exam (DRE): This is done to check the prostate in men.
- Blood tests: Urologists perform blood tests such as prostate-specific antigen (PSA), testosterone, and creatinine.
- Urine tests: This may include urine culture, urinalysis, and 24-hour urine test.
- Seminogram: This is done to check the quality and number of sperm in men.
- Imaging tests: Urologists use imaging tests such as CT scans, ultrasounds, and X-rays.
Difference between urologist and nephrologist
It is important to understand that there are significant differences in the work fields of urologists and nephrologists. People usually consider both of them the same, but their specializations are different.
- Nephrologist: They treat kidney diseases. Kidney function, diseases, and kidney failure are issues that fall under the nephrologist’s field. They diagnose and treat kidney diseases, but they do not perform surgery.
- Urologist: Urologists treat diseases of the urinary system and reproductive organs. This includes the kidneys, bladder, ureters, and male reproductive organs. Urologists may treat problems that require surgery, such as kidney stones and prostate cancer.
- Surgical ability: Urologists can perform surgery, while nephrologists only perform medical treatments. For example, kidney stones can be treated by urologists through surgery, while nephrologists will only treat them with medications.
- Treatment areas: Nephrologists focus only on kidney diseases, while urologists treat problems related to the urinary system and reproductive organs. Urologists also treat problems related to the reproductive system of men and women, which do not fall under the purview of nephrologists.
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Conclusion
If you have a problem related to the urinary system, reproductive organs or sexual health, you should see a urologist. If your problem is related to the kidneys, such as kidney disease, kidney failure or kidney stones, you should consult a nephrologist. Understanding when and which specialist to see plays an important role in treating your condition.
If you are facing any problem related to the kidney or urinary system, we at RG Stone and Laparoscopic Hospital provide personalized treatment, keeping your health in mind. We look forward to giving you expert guidance and the best treatment so that you can feel better soon.
FAQs
Q. What is the main difference between a urologist and a nephrologist?
A. A urologist treats urinary and male reproductive issues; a nephrologist treats kidney-related medical problems.
Q. When should I see a nephrologist instead of a urologist?
A. See a nephrologist for kidney disease, high blood pressure, or abnormal urine tests.
Q. Do nephrologists perform surgery?
A. No, nephrologists do not perform surgery.
Q. Can a urologist treat kidney disease?
A. Only for structural issues like stones or tumors, not for kidney function.
Q. Is dialysis handled by a urologist or a nephrologist?
A. Dialysis is managed by a nephrologist.
Prof. (Dr) Rajeev Sood is a renowned urologist, surgeon, and educator with over 40 years of experience. A Dr B C Roy Awardee and gold medalist from USI, ASI, and NZUSI, he shares his rich expertise through blogs on medicine, surgery, and healthcare leadership.