Human activity is causing environmental degradation, which is the deterioration of the environment through depletion of resources such as air, water and soil; the destruction of ecosystems; habitat destruction; the extinction of wildlife; and pollution.
Screening for abdominal aortic aneurysm (AAA) Research studies suggest that a routine ultrasound scan is worthwhile for all men aged 65. This is because most people with an AAA do not have symptoms. Following a routine scan, surgery can be offered to men found to have an aneurysm over 5.5 cm wide.
Most aortic aneurysms occur in the part of your aorta that's in your abdomen. Although the exact cause of abdominal aortic aneurysms is unknown, a number of factors may play a role, including: Tobacco use. Cigarette smoking and other forms of tobacco use appear to increase your risk of aortic aneurysms.