All his life, he slept like a stone. But now, there's an annoying trip to the bathroom every night, sometimes once or twice a night. For most men, these nightly bathroom runs may be the first sign of an enlarged prostate. Other symptoms may include trouble starting a stream of urine, leaking, or dribbling. And, like gray hair, an enlarged prostate is a natural by-product of getting older, doctors say.
For almost all cancers (such as breast, brain, prostate, and lung), a person may donate blood five years after diagnosis or date of the last surgery, last chemotherapy or last radiation treatment. For blood cancers (such as leukemia or lymphoma), a person is not allowed to donate blood.
Yes, it is true that you cannot donate blood for till 6 months after being tattooed. This is because blood donated by such people carries the risk of being infected as it involves the use of needles. This is just an infection control measure. Caution is important to cut chances of infection.