One should see your doctor regularly for health screening advice depending on your medical history, age, risk factors and lifestyle.
It usually varies from every 3 to 6 months for the elderly and 1 to 2 years for the general adult population. Please see your doctor to be adviced on how often you should be having your checks.
If you are at risk of chronic diseases such as hypertension, diabetes, hypercholesterolaemia, or have a family history of cancer, a screening interval of no more than 6 months to 1 year is advised. Even though if you have a very active lifestyle or eat healthy, you should not skip your health screening.