Hemorrhoids are also known as piles. It is a common condition that develops when the veins of lower anus or rectum got swelled. These veins rest under the mucus membrane, which takes blood back to the heart from the anus and rectum. Unless until the blood vessels are content, they are the regular part of human anatomy playing the vital role of transportation of blood, oxygen, and nutrients. They are located at the junction where the tiniest arteries merge with the smallest veins. These precious and delicate capillaries are guarded by smooth and connective tissues, named by their location concerning the pectinate line. Upper two-third is divided by a lower one-third of the anus, and this dividing point is called “pectinate line.”
The pectinate line is essential to differentiate between the cells lining hemorrhoids and nerve cells, which provide sensation. Hemorrhoids usually become a continuous problem from the end of the young age and the start of old age.