Frolic is a playful word with a happy history. It traces back to the Dutch word vroolijk (merry), which in turn evolved from a Middle Dutch combination of vro (happy) and the adjectival suffix -lijc (-ly).
A normal PSA level is considered to be 4.0 ng/mL (nanograms per milliliter of blood). 1  For men in their 50s or younger, a PSA level should be below 2.5 in most cases.  Older men often have slightly higher PSA levels than younger men.
1 Total PSA levels between 4.0 ng/ml and 10.0 ng/ml may indicate prostate cancer (about a 25% chance, according to the ACS), benign prostate hyperplasia (BPH) , or inflammation of the prostate. 2  These conditions are more common in the elderly, as is a general increase in PSA levels.hile elevated PSA levels are associated with cancer, they may be caused by other conditions, such as benign prostatic hyperplasia (BPH) and inflammation of the prostate. An elevated PSA may be followed by a biopsy, which has risk of complications such as pain, fever, blood in the urine, or urinary tract infection.