See cancer for the biology of the disease, as well as a list of malignant diseases. Oncology is a branch of medicine that deals with the prevention, diagnosis and treatment of cancer. A medical professional who practices oncology is an oncologist. The name's etymological origin is the Greek word á½Î³ÎºÎ¿Ï (Ã³nkos), meaning tumor, volume or mass.
1 An increase in maternal age affects the chances of miscarriage. 2  Women under the age of 35 yrs old have about a 15% chance of miscarriage. 3  Women who are 35-45 yrs old have a 20-35% chance of miscarriage. 4  Women over the age of 45 can have up to a 50% chance of miscarriage.
Miscarriages are caused by failure of the pregnancy to develop. They are very common. In women under age 35 the miscarriage rate is around 20 percent; in women over 35 itâs around 33 percent, and in women over 45 it is around 50 percent. People are not aware of how common they are so many times, just like Soniaâs story. They are not expecting this news. More than 90 percent of the time first trimester miscarriages are caused by a genetic abnormality in the fetus that prevents it from developing. Miscarriages are natureâs natural selection.