An anal fissure is a tear in the lining of your anus or anal canal, the lowest part of your intestinal tract. It can make bowel movements very painful, and can even cause pain that lasts for hours after you've gone to the bathroom. You may even try to avoid the bathroom to prevent the pain.
An anal fissure is usually a short-term (or acute) problem, with symptoms that last 6 weeks or less. It's considered chronic when symptoms last for more than 6 weeks. Chronic anal fissures may be harder to treat and may be a symptom of another condition, such as Crohn's disease or ulcerative colitis.
Every year, millions of Americans come down with the "stomach flu," or viral gastroenteritis. It can cause diarrhea, vomiting, cramps, fever, and headache. It’s also highly contagious. What treatments will make life with the stomach flu a little less awful? More importantly, how can you avoid getting it in the first place? Here are some answers.