Many think of it as 'sticking.' implantation in humans always occurs when the embryo is between 6-7 days old. A very popular concept on the internet now in 2012, 'implantation bleeding, ' is speculative and mostly not useful.
Also, urinary stones can form in the bladder lining due to an accumulation of debris and chemicals. Broken blood vessels can cause blood in the urine, often because of torn or enlarged veins on the inner surface of the prostate. Blood in the urine also can be caused by the sudden stretching of the bladder wall.
Symptoms of benign prostate enlargement. The symptoms of benign prostate enlargement are caused by the enlarged prostate placing pressure on the bladder and urethra (which carries urine from the bladder to the penis). This can affect urination in a number of ways. For example, it can: make it difficult for you to start urinating.