Dr. Zhiwei Zhang MD

Recommended Articles

• Will My Kidney Stones Result in Future Kidney Problems?

  A kidney stone is a condition that occurs when the minerals and salts present in the urine become concentrated in high levels and eventually tend to crystallize. These crystallized formations can be seen as stones, and they often stick together. Kidney stones mostly form in the kidney. They start as...

• What Is Shivering: 15 Conditions That Might Cause Chills

  What is shivering?Exposure to cold or rapid shifts in temperature usually causes uncontrollable shivering. However, many other possible causes can cause shivering or chills. An uncontrollable shivering that persists for a longer time may indicate an underlying illness that requires immediate medical...

• What is a Cluster Headache?

  Headaches that recur two to three times during a short period of time are known as cluster headaches. This may last for few weeks, to months. These headaches often occur after sleep and recur throughout the day. It usually appears during the same time of the year, or season of the year. It may...

• What Is Dysuria: Causes, Symptoms, and Treatment

  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...

• What Medical Conditions Are Associated with Blood in Urine?

  Introduction:Blood in urine is more often than not a sign that there is something amiss in the body. It may signal a minor infection that need not worry you, but it could also be pointing to something more serious that is still undetected. Even if you appear to be in reasonably good health, it is...

• What Is Renal Ultrasound Used For?

  A renal ultrasound is actually a diagnostic procedure, wherein high-frequency sound waves are transmitted through the body tissues that are inaudible to the human ear. The echoes recorded into videos or images of the internal structures of the body.A wide range of diseases and conditions can be...