This is often described as a discomfort or aching sensation particularly by the end of the day when the person has been standing or sitting for a long period of time. This is thought to be due to increasing pressure in the varicocele due to increased blood pooling.
There is an association between infertility and varicoceles. Most men with varicoceles are not infertile. However, if one has a varicocele,then there an increased chance of infertility. Among infertile couples, the incidence of a varicocele is about 30%. It is thought that the increased blood flow around the scrotum is responsible for raising the temperature in the testicles and results in defective sperm formation.
Varicoceles may cause decreased sperm count, decreased motility of sperm, or an increase in the number of deformed sperm.
Another symptom of varicoceles is the shrinkage of the testicles, also known as atrophy. This may recover following treatment.