Typical varicocele symptoms are asymptomatic to mild and many do not require treatment. Treatment may be necessary if the varicocele is causing discomfort or any of the other problems listed below.
Pain One of the signs of varicoceles is an aching pain when the individual has been standing or sitting for an extended time and pressure builds up in the affected veins. Heavy lifting may make varicocele symptoms worse and, in some cases, can even cause varicoceles to form. Usually (but not always) painful varicoceles are prominent in size.
Fertility Problems There is an association between varicoceles and infertility or subfertility, but it is difficult to be certain if a varicocele is the cause of fertility problems in any one case. In one study, as many as 40 percent of men who were subfertile were found to have a varicocele. Other signs of varicoceles can be a decreased sperm count; decreased motility, or movement, of sperm; and an increase in the number of deformed sperm. It is not known for sure how varicoceles contribute to these problems, but a common theory is that the condition raises the temperature of the testicles and affects sperm production. Studies have shown that from 50 percent to 70 percent of men with fertility problems will have a significant improvement in the quality and/or quantity of sperm production after they have undergone varicocele repair.
Testicular Atrophy Atrophy, or shrinking, of the testicles is another of the signs of varicoceles. The condition is often diagnosed in adolescent boys during a sports physical exam. When the affected testicle is smaller than the other, repair of the variocele is often recommended. The repaired testicle will return to normal size in many cases.
Other Signs The testis, besides making sperm, also makes testosterone, the main male hormone. Testosterone is responsible for a man's "secondary male characteristics" (i.e., increased muscle mass and tone, level of sexual interest, body hair). Varicoceles can damage the cells that make testosterone and may lead to a decreased overall testosterone level.