A coloproctologist is a doctor who specializes in the diagnosis and treatment of diseases of the colon, rectum and anus.
A doctor or family doctor is responsible for diagnosing and prescribing medical treatments to patients. The family doctor refers to patients where a specialist when a specific treatment is required.
The internist is the specialist in comprehensive care focused on diseases that affect internal organs and systems.
The gastroenterologist is a doctor specializing in diseases of the digestive system including esophagus, stomach, intestines, colon and rectum, pancreas, gallbladder, bile ducts and liver.
A surgeon is a doctor who can prevent and diagnose a disease through surgery.