Arthritis in the knee is becoming more common as the population ages and lives longer. Knee arthritis is a risk for people who bend their knees or squat frequently as part of their daily routine or occupation. There are non-modifiable factors involved with knee arthritis, risks that are out of the patient’s control. Some non-modifiable risk factors are: Age – The risk of developing most types of arthritis increases with age; Gender – Most types of arthritis are more common in women; Genetics – Specific genes are associated with a higher risk of certain types of arthritis.