An anal fissure is a cut or tear occurring in the anus (the opening through which stool passes out of the body) that extends upwards into the anal canal. Fissures are a common condition of the anus and anal canal and are responsible for 6% to 15% of the visits to a colon and rectal (colorectal) surgeon.They affect men and women equally and both the young and the old. Fissures usually cause pain during bowel movements that often is severe.issures are a common condition of the anus and anal canal and are responsible for 6% to 15% of the visits to a colon and rectal (colorectal) surgeon. They affect men and women equally and both the young and the old.
High Blood Pressure. ï·ï  In the United States, about 77.9 million (1 out of every 3) adults have high blood pressure. ï·ï  Data from NHANES 2007â10 showed that of those with high blood pressure, - 81.5 percent are aware they have it. - 74.9 percent are under current treatment. - 52.5 percent have it controlled.
Overview. There are two main types of hypertension, and there are four types of hypertension that are less common. Depending on the type of hypertension, the cause could be known or unknown. It is suspected that hypertension results from a combination of factors related to genetics, diet, and lifestyle.Primary hypertension, also known as essential hypertension, is the most common type of hypertension. With this type of hypertension, there is no single identifiable cause for high blood pressure.here are two main types of hypertension, and there are four types of hypertension that are less common. Depending on the type of hypertension, the cause could be known or unknown.