Your question basically pertains to what doctors call "Cancer Screening". This refers to the performance of some tests in healthy people in order to detect cancer, if at all present, at an earlier stage than would be possible if it were allowed to grow and manifest itself with symptoms and signs.
There are no good screening tests for blood cancers. Acute leukemias present with a short and turbulent history, so it is illogical to suspect this type of blood cancer in healthy people. Also, there is no significant "latent period" for this disease - ie when acute leukemia is present in the marrow or blood, yet patient has no symptoms.
A simple peripheral blood smear examination would be able to detect chronic leukemia even in patients who have yet not developed any symptoms.
In young males, common cancers include blood, testes, brain, bone, etc. There are no recemmended screening tests for these. For older men, tests for colon cancer, prostate cancer, and perhaps lung cancer are advised.
The steps you can take to reduce your chances of cancer include abstaining from smoking, limiting alcohol intake, eating a low calorie and low fat diet, avoiding red meat, eating plenty of fruits and vegetables, exercising, maintaining a healthy weight, avoiding viral diseases like HPV etc.
This site complies with the HONcode standard for trustworthy health information.
The Content on this Site is presented in a summary fashion, and is intended to be used for educational and entertainment purposes only. It is not intended to be and should not be interpreted as medical advice or a diagnosis of any health or fitness problem, condition or disease; or a recommendation for a specific test, doctor, care provider, procedure, treatment plan, product, or course of action. Med Help International, Inc. is not a medical or healthcare provider and your use of this Site does not create a doctor / patient relationship. We disclaim all responsibility for the professional qualifications and licensing of, and services provided by, any physician or other health providers posting on or otherwise referred to on this Site and/or any Third Party Site. Never disregard the medical advice of your physician or health professional, or delay in seeking such advice, because of something you read on this Site. We offer this Site AS IS and without any warranties. By using this Site you agree to the following Terms and Conditions. If you think you may have a medical emergency, call your physician or 911 immediately.