Hemorrhoids are lumps that result from swollen veins around your anus. Fissures are skin tears in your anus and are more likely to cause pain and lead to complications. Hemorrhoids happen when veins ...

Q: I’ve got hemorrhoids. What are they exactly? How can I avoid getting them again? A: Everyone has hemorrhoids. They are a normal part of our bodies: Hemorrhoids are simply cushions of veins along ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...

Hayden — Assistant Surgeon to Out-Patients, Massachusetts General Hospital. For record and address of author see "This Week's Issue", page 239. Select the format you want to export the citation of ...