Hi,i turned 50 last year, should i get a colonoscopy?

Depends on details: A person who has no known illness that needs a colonoscopy but is looking at it just as a screening test, can ask her primary care doctor what the recommendations are for her personally and for that particular country (recommendations depend on RISK FACTORS). The US recommendations are: https://www.cancer.org/cancer/colon-rectal-cancer/detection-diagnosis-staging/acs-recommendations.html