General surgery can be performed on almost any area of the body. A general surgeon is a physician who performs surgery and provides preoperative, operative, and postoperative care to surgical patients. This surgeon can treat diseases, injuries or deformities by surgery or minimally invasive techniques, such as endoscopy, where a tiny scope is used to view internal organs or structures. The endoscope can be used during operating procedures, or before surgery, to diagnose, assess and treat problem areas.

Physicians in this specialty treat patients suffering from numerous diseases and illnesses, but some of the most common are breast disease, thyroid disorders, hernia, breast cancer, Crohn's Disease, cystic fibrosis, Cirrhosis, Hepatitis, lymphoma, Chronic renal failure, Morbid obesity, Adhesions, Colorectal cancer, Hirschsprung's disease, Volvulus, Thyroid cancer, Kidney cancer, Metastatic disease, Toxic megacolon, and Meckel's diverticulum.

Once properly diagnosed, practitioners can perform numerous procedures on patients including microsurgery, mastectomy, laser surgery, Minimally Invasive Surgery, breast reconstruction, breast surgery, thyroid surgery, Laparoscopic Surgery, da Vinci Surgical System, Bypass Surgery, robotic surgery, Resection, Liver transplant, Whipple procedure, Kidney transplant, Bariatric surgery, Appendectomy, Cholecystectomy, cryosurgery, and abdominal surgery.

To diagnose patients with possible illnesses and diseases, specialists will often perform one of many tests including endoscopy, Magnetic Resonance Imaging (MRI), x-ray, Computed Axial Tomography (CT or CAT Scan), Electrocardiogram (ECG or EKG), biopsy, Cardiac Stress Test, Lower GI (Barium Enema), Upper GI (Barium Swallow), and fecal occult bloodtest.

Doctor density varies by specialty and location. California has 2,837 practicing general surgeons. Broken out by city, general surgery doctor density in Oakdale is 2, in Oakland is 47, in Oceanside is 5, in Ojai is 1, in Ontario is 1, in Orange is 69, in Orinda is 2, in Orland is 1, in Oroville is 7, and in Oxnard is 13.

California’s population is 36,142,137, and it is America’s third largest and most populous state. It also claims the highest and lowest altitudes in the lower 48 states. The lowest point in the country, Death Valley, is also home to the nation’s highest recorded temperature, 134 degrees. Tourists flock to this state for its many outdoor activities and attractions, including Universal Studios, Disneyland, Rodeo Drive shopping, the Golden Gate Bridge in San Francisco, wine country tours, and California’s numerous beaches and parks. Los Angeles is the nation’s second largest city, but California’s capital is Sacramento. The giant sequoias in California’s forests are among the oldest living things in the world, and a redwood in the Redwood National Park is said to be the world’s tallest tree, at 365 feet. California achieved statehood in 1850, and was named the Golden State after the beginning of the Gold Rush in 1848.

According to 2005 Census estimates, California has a population of 36,132,147. Of this population, 9,308,563 are under the age of 18 and 3,827,038 are at or above the age of 65.