Fact:At least 6 out of every 10 deaths from colorectal cancer could be prevented if all men and women aged 50 years or older were screened routinely.

Fact:The American Cancer Society estimated that in 2011 about 141,210 people were diagnosed with colorectal cancer in the US.

Fact:The American Cancer Society estimated that in 2011 about 49,380 people died of colorectal cancer in the US.

Fact:Colorectal cancer is the third most commonly diagnosed cancer.

Fact:Colorectal cancer is the third leading cause of cancer death in both men and women in the US.

Fact:Overall, 90% of new cases and 94% of deaths occur in individuals 50 and older.

Fact:Colorectal cancer incidence and mortality rates are highest in African American men and women.

Fact:One of the most consistently reported relationships between colon cancer risk and behavior is the protective effect of physical activity.

Fact:The goals of screening for colorectal cancer are the prevention of cancer through the detection and removal of precancerous growths and the diagnosis of cancers at an early stage.

Diseases

Hiatal Hernia

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Any time an internal body part pushes into an area where it doesn't belong, it's called a hernia.

The hiatus is an opening in the diaphragm -- the muscular wall separating the chest cavity from the abdomen. In a hiatal hernia (also called hiatus hernia) the stomach bulges up into the chest through that opening.

There are two main types of hiatal hernias: sliding and paraesophageal (next to the esophagus).

In a sliding hiatal hernia, the stomach and the section of the esophagus that joins the stomach slide up into the chest through the hiatus. This is the more common type of hernia.

The paraesophageal hernia is less common, but is more cause for concern. The esophagus and stomach stay in their normal locations, but part of the stomach squeezes through the hiatus, landing it next to the esophagus. Although you can have this type of hernia without any symptoms, the danger is that the stomach can become "strangled," or have its blood supply shut off.

Often, people with hiatal hernia also have heartburn or Gastroesophageal Reflux Disease (GERD). Although there appears to be a link, one condition does not seem to cause the other.

Cuases
Most of the time, the cause is not known. Some people develop a hiatal hernia after sustaining an injury to that area of the body; others are born with a weakness or an especially large hiatus. Increased pressure in the abdomen from coughing, straining during bowel movements, pregnancy and delivery, or substantial weight gain may contribute to the development of a hiatal hernia. In addition to the increased occurrence in people over fifty, hiatal hernias also occur more often in overweight people (especially women) and smokers.

Diagnosis
A hiatal hernia can be diagnosed with an upper endoscopy (EGD) or via specialized X-ray study that allows visualization of the esophagus (barium swallow).

Treatment
Most people do not experience any symptoms of their hiatal hernia so no treatment is necessary unless there are symptoms of Gastroesophageal Reflux Disease (GERD) . However, the paraesophageal hernia (when part of the stomach squeezes through the hiatus) can cause the stomach to be strangled so surgery is usually recommended.