Dr. Mark S Segal MD

What is dysuria?Dysuria is the medical term for painful urination or discomfort while urinating. This painful, burning sensation is commonly associated with urinary tract infections, which are usually caused by bacteria. Dysuria is also a common symptom of cystitis (inflammation of the bladder) and...

Oliguria is a medical term used when referring to a decreased urine output. Oliguria is considered when a person’s urine output is less than 400 mL in a 24-hour period. When it comes to infants, oliguria occurs when the urine output is less than 0.5 mL/kg/hr for 24 hours. Anuria is the absence...

Hematuria is the phenomenon in which traces of blood appear in the urine. It presents a unique problem because it is not a disease in itself. It is not infectious, nor is it capable of threatening a life. It is merely a warning sign that something is wrong inside the body. Though frightening in...

What are kidney stones?A kidney stone is a hard, crystal-like mineral substance formed within the kidney or urinary tract. In medical terms, it is known as nephrolithiasis. They are also called as renal calculi.Kidney stones can block the stream of urine and can result in urinary infection, kidney...

What are leukocytes?White blood cells (WBCs) are also called as leukocytes. They protect the body from infections by fighting foreign invaders such as viruses, bacteria, fungi, or parasites. Phagocytes and lymphocytes are forms of white blood cells (WBCs).Phagocytes engulf foreign particles like...

UltrasoundIt is actually a diagnostic procedure. High-frequency sound waves are transmitted through the body's tissues that are inaudible to the human ear. This creates videos or photographic images of the internal structure of the body after the echoes are recorded and transformed.Many diseases and...