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.
As the prostate gland is located beneath the bladder, and the urethra is through prostate, when the prostate is enlarging and oppress the urethra, you may got urinary problems. There still remains dispute on the causes of prostate enlargement. There is one view that BPH can be affected or aroused by sexual intercourses. And there are researches indicates that men who have 2 times per week intercourses in their youth, and have one time per week, and one time every two to three week, have lower BPH morbidity. Also their prostate enlargement is slighter.