The inguinal canal is the weak area where the inguinal hernia occurs.
It is cylinder shape and created by its walls – muscles tendons and ligaments.
The inguinal canal can be described as a passage with a floor, roof, anterior wall, posterior wall and two rings that close the openings.
The inguinal canal is situated 1cm – 1.5cm above the middle part of the inguinal ligament. Its length is 4 cm.
Inside the canal passes the spermatic cord in males and the round ligament of the uterus in females.
In men the inguinal canal was made by the descended of the testicles as they pass through the abdominal wall forming the scrotum, that is why the canal is broader in men than in women, and inguinal hernia is more common with men.
From the scrotum the spermatic cord transfers the sperms through the canal to the cavity of the lower abdomen through the prostate and into the urethra. On their way the sperms gets more fluids that helps them swim faster and stronger.
The inguinal canal is usually closed tight around the spermatic cord and only sperm can press through directed to the urethra.
Muscles, tendons and fascia keep the canal and also creates it.
When the anterior wall of the canal weakened and the deep inguinal ring gets slightly open, the pressure of the internal organs on this spot makes them intrude through the canal and an inguinal hernia occurs.