American immigration history can be viewed in four epochs: the colonial period, the mid-nineteenth century, the turn of the twentieth century, and post-1965. Each period brought distinct national groups, races and ethnicities to the United States. During the seventeenth century, approximately 175,000 Englishmen migrated to Colonial America. Over half of all European immigrants to Colonial America during the 17th and 18th centuries arrived as indentured servants. The mid-nineteenth century saw mainly an influx from northern Europe; the early twentieth-century mainly from Southern and Eastern Europe; post-1965 mostly from Latin America and Asia.
Individuals applying for citizenship, seeking Permanent Residency or a Green Card are required to obtain an immigration physical prior to approval of their application. The U.S. Citizenship and Immigration Services (USCIS) make it mandatory that immigration physicals are completed by a qualified USCIS Civil Surgeon so the exam is valid.
A medical exam is required for all immigrant visas and some nonimmigrant visas, as well as for refugees and adjustment of status applicants. The purpose of the medical exam is to determine if you have any health conditions that need attention prior to immigrating.
Migration is difficult, expensive, and dangerous for those who enter the US illegally across the United States–Mexico border. Participants in debates on immigration in the early twenty-first century called for increasing enforcement of existing laws governing illegal immigration to the United States, building a barrier along some or the entire 2,000-mile (3,200 km) U.S.-Mexico border, or creating a new guest worker program. Through much of 2006 the country and Congress was immersed in a debate about these proposals. As of April 2010 few of these proposals had become law, though a partial border fence had been approved and subsequently canceled.
Examination and Testing
One has to fill in a number of medical history questions, including immunizations so a person has to be sure to have proof of immunization status. They listen to your heart, lungs, blood pressure; they will check your genitals to ensure you are the sex you say you are.
There is blood taken to check for HIV. A few days later you are given a sealed copy of the report which you give to the consular officer at your interview. You will be tested for tuberculosis (TB). Applicants two years old or older will be required to have a tuberculin skin test or chest x-ray. The doctor may require an applicant younger than two to have a skin test if the child has a history of contact with a known TB case, or if there is another reason to suspect TB disease.
Health records such as TB tests or chest x-rays. Your state id and your passport But don’t worry. Most doctors’ officers who specialize in immigration documents are really very thorough and know exactly what you need. Budget between 150 and 300 dollars for all immunizations and chest x-rays as necessary. You will also be tested for HIV.
After The Exam
At the completion of the exam, the certified doctor or clinic will provide you with documentation that you will need to complete your adjustment of status.
If there are any irregularities regarding the medical exam, remember that the doctor is providing a medical opinion and can only make recommendations. The consulate or USCIS has the final decision on whether the individual will be approved or not.
Individuals 
USCIS manages the process that allows individuals from other countries to 
The following is a brief guide to US Citizenship and 
What is an Immigration Doctor?
A USCIS doctor is a US Citizenship and Immigration Services officer, the 
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Immigrant Visa 