The National Kidney Federation explains that the most common reasons one kidney is larger than the other include congenital dysplasia, reflux nephropathy, kidney infection and blood starvation in the smaller kidney. Diseases such as glomerulonephritis also cause a kidney to become smaller.Know More
Congenital dysplasia is a condition wherein a kidney is small at birth or has never grown with the rest of the body, says the NKF. It is a common cause of small kidneys and is typically detected in childhood. In some cases, the small kidney is in a normal position in the upper back. However, in other cases, it is found in the lower abdomen as it has failed to move up from there before birth.
Reflux nephropathy refers to a damaged kidney due to a faulty drainage system, explains the NKF. It is commonly detected in childhood and early adulthood.
According to the NKF, sometimes one kidney is bigger than the other because an infection has caused the other kidney to shrink. Severe kidney infections damage the kidney and cause it to become small. When the kidney lacks blood due to a narrowing in the artery that supplies the organ with blood, it often becomes smaller. This condition typically occurs in older people, especially those with a history of angina or heart attack.Learn more about Medical Ranges & Levels
Initial signs of a kidney infection include abdominal discomfort, urinary frequency and burning upon urination, explains Mayo Clinic. Infected individuals may also suffer from back pain and notice blood or pus in their urine.Full Answer >
The only way to know for sure whether or not a dog has a kidney infection is through a veterinary examination. According to the Merck Manual for Pet Health, symptoms that may indicate a kidney infection include pain in the sides, fever and a general sense that the dog is not well. Vomiting, reduced appetite, increased urination or thirst are other symptoms of a possible kidney infection.Full Answer >
A person with a kidney infection, or pyelonephritis, may experience vomiting, nausea, back pain, fever or confusion. Medical treatment should be sought immediately to avoid permanent kidney damage.Full Answer >
Back pain is one of the symptoms doctors use in diagnosing a kidney infection. If the doctor suspects an infection, he often asks for a urine sample to test for bacteria. According to the Mayo Clinic, blood tests, computerized tomography scans and x-rays are also useful in the diagnosis of kidney infections.Full Answer >