Noun. 1. dark matter - (cosmology) a hypothetical form of matter that is believed to make up 90 percent of the universe; it is invisible (does not absorb or emit light) and does not collide with atomic particles but exerts gravitational force.
Causes of Similar Symptoms to Acute prostate blockage like symptoms. Research the causes of these symptoms that are similar to, or related to, the symptom Acute prostate blockage like symptoms: Introduction.  conditions which cause acute symptoms similar to that when there is a blockage to prostate secretions. See detailed information below for a list of 1 causes of Acute prostate blockage like symptoms, including diseases and drug side effect causes. Â» Review Causes of  Causes.
The prostate gland is located beneath your bladder. The tube that transports urine from the bladder out of your penis (urethra) passes through the center of the prostate. When the prostate enlarges, it begins to block urine flow. Most men have continued prostate growth throughout life. In many men, this continued growth enlarges the prostate enough to cause urinary symptoms or to significantly block urine flow. It isn't entirely clear what causes the prostate to enlarge.