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 causes of enlarged prostate (BPH) are not fully understood but it is known that the main risk factor is age and nearly a third of men over 50 are thought to have symptoms. Over 50% of men in their 60âs and nearly all men in their 70âs are thought to suffer some symptoms of enlarged prostate. For most men, the prostate will start to enlarge in the 40âs or 50âs.