Surgery (removing the cancer in an operation) is the most common treatment for all stages of colon cancer. A doctor may remove the cancer using one of the following types of surgery: Local excision: If the cancer is found at a very early stage, the doctor may remove it without cutting through the abdominal wall.
The study began in 1932, when syphilis was a widespread problem and there was no safe and effective treatment. The study was designed to measure the progression of untreated syphilis. By 1947, penicillin had been shown to be an effective cure for early syphilis and was becoming widely used to treat the disease.
What causes syphilis? Bacteria cause syphilis. They usually enter the body through the tissues that line the throat, nose, rectum, and vagina. A person with syphilis who has a sore or a rash can pass the infection to others. An infected pregnant woman can also pass syphilis to her baby. Some things increase your chance of getting syphilis. They include: Having unprotected sex (such as not using condoms or not using them correctly). This risk is high among men who have unsafe sex with other men. Having more than one sex partner and living in an area where syphilis is common. Having a sex partner who has syphilis. Having sex with a partner who has many sex partners.