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Originally posted by idontknow: Yea i was wondering what that was because I have that to in my left testicle is it bad.What is the big deal about it what does it do? |
A varicocele is quite common, affecting about 10-15% of all men. Its caused by the failure of tiny valves inside the veins that carry blood from the testicle to the body, that help keep the blood moving up towards the heart against gravity. When these valves fail, the blood backs up in the vein, putting pressure on the vein walls, and they end up twisting and swelling, causing a varicocele. Varicoceles are usually found on the left testicle, because the veins are longer on that side.
Some varicoceles are small and go unnoticed. Others are a bit larger and are noticeable, but don't cause any discomfort or fertility issues. Some are large, very noticeable, cause a dull intermittent aching pain, a dragging sensation in the scrotum against the leg, cause testicle shrinking (atrophy), or affect sperm production to the point of infertility.
The testicle shrinking is caused by the restricted blood flow of the failed vein, and therefore there is insufficient oxygen and nutrients to support the entire testicle, so it begins to shrink in size. Usually, the smaller size brings sperm production down in that testicle since there are fewer sperm producing cells. This can affect fertility. The other problem that varicocele can cause with regards to fertility is the extra blood backed up in the vein in the scrotum creates extra heat. Since sperm production is best several degrees below body temperature, this extra heat creates problems for the sperm creation process.