You can't. There is no way to prevent kidney cancer. There are some risk factors for kidney cancer, but even if one does not have any risk factors, it can still develop, even if you live a healthy lifestyle. There is a sporadic form of kidney cancer that can occur even without any risk factors or family history of cancers.
Renal cancer. Not really. There are no dietary, behavioral or lifestyle factors known to influence kidney cancer.
Spontaneous. Renal cell cancer may be asymptomatic large palpable mass urinary blood back pain pulmonary emboli from venous extension.
Kidney ca. Blood in urine pain but usually no spot ins in very early stages.
Blood in urine. Or abdominal pain.
Classic Triad. In the past the classic signs of kidney cancer were pain, blood in the urine and a mass that could be felt in the belly. That would be a late presentation of disease. Nowadays the most common sign is blood in the urine without pain or mass. A number of tumors are found on ct incidentally. Luckily when masses are found that early they are treatable with surgery or ablation with freezing.
X-ray. In the past, most kidney cancers were detected at a high stage or late stage (the cancer has grown large and invaded other structures) and therefore the signs were a large mass that can be felt, hematuria, or side/back pain. However today many kidney cancers are being detected at an early stage (small and limited to the kidney) because patients have x-rays (ct scan) for other reasons.
Urinalysis/US. The most typical tests to determine if a patient has a kidney malignancy are a simple urinalysis, which determines if there is blood in the urine, and an ultrasound, which can provide a nice picture of the architecture of the kidneys. Renal cell cancer usually presents with gross, painless hematuria.
CT scan. The best test for diagnosing kidney cancer is a ct scan of the kidneys with and without IV contrast. Mri and/or kidney ultrasound are also helpful studies. Urinalysis is also helpful.
Imaging. The vast majority of kidney cancers are found by imaging (ct scan or mri) either in symptomatic patients (flank pain, blood in urine, etc.) or fortuitously while investigating an unrelated problem.
Yes. While there is some genetic propensity for the development of renal cell cancer, the majority of cases develop spontaneously.
Everyone is at risk. There are more than one type of kidney cancer smokers are at higher risk, people with exposure to analine dyes. And people from the balklands are at higher risk for some types.