Each and every one of us inherits two copies of genes – one copy from our mother and one copy from our father. Most people are born with two normal copies of each gene. Hereditary cancer occurs when a person is born with changes or mutations in one copy of a damage-controlling gene which normally protects and fight cancer cells. People with an inherited gene change have a 50% chance of passing the mutation to each of their children.
Oral cancer is a type of head and neck cancer. Although relatively rare, oral cancer is the third most common cancer among Malaysian Indian community in Malaysian Ministry of Health Hospitals. Oral cancer is the sixth most common cancer in the world and is highly associated with the practice of tobacco smoking, betel quid chewing and excessive alcohol consumption.