Hemorrhoids occur when vascular tissue in the anus or rectum becomes swollen and irritated. Hemorrhoids can be internal (inside the anus or lower rectum) or external (under the skin around the anus).

Hemorrhoids, a health problem that affects numerous individuals, are essentially engorged veins located in the rectum’s lower section or the anus, leading to pain, itching, and bleeding.

Hemorrhoids or piles are the swollen veins surrounding the anus. These veins can be under the skin around the anus or inside the rectum, which is the section of the large intestine leading to the anus ...

If you’ve never had a hemorrhoid, you’re very lucky. If you have, you’re all too familiar with the extreme discomfort that comes from this particular digestive affliction. Characterized by pain, ...

This program is useful for visualizing approximations of energy band diagrams, and performing back-of-the-envelope calculations of their important parameters. Energy bands can be modeled at varying ...