Nobody warns you about this part. The US immigration medical exam for Nigerian applicants is often the last hurdle before a green card approval, and a surprisingly common source of delays. Not because of health conditions, but because of paperwork that should have been chased down months earlier.
You’ve filed the petition. Waited. Got the interview date. At some point between that and the actual interview, someone brings up the medical exam, and suddenly you’ve three tabs deep at midnight trying to figure out whether your childhood yellow card from a government clinic that probably no longer exists is going to be a problem.
It might not be. But the exam has its own approved doctors, its own vaccine, its own timing window, and its own set of ways to go wrong that have nothing to do with whether you’re actually healthy. The wrong clinic means starting over. Incomplete documentation turns a 90-minute appointment into a half-day. Results that expire before your interview date mean you have to schedule the whole thing again.
This piece covers what the process actually looks like for Nigerian applicants, what you need to have sorted before you walk in, and where things most commonly go sideways.
See Also: Global Talent Visa vs O-1A: Which Is the Better Path for Nigerian Tech Founders in 2026?
What Does The US Immigration Medical Exam Apply to You?
If you’re pursuing a US green card on an EB-1A, EB-2 NIW, or coming off an O-1A, the medical exam is part of the process. There’s no opting out and no deferring it. The only real question is whether it happens in Nigeria or inside the US.
Who Is Exempt From the Medical Examination Requirement
The short answer is: not many people. If you’re on a tourist visa, a student visa, or an H-1B visa, the exam doesn’t apply to you. It’s specifically tied to immigrant visa applicants and people filing Form I-485 to adjust to permanent resident status. Once a green card is on the table, so is the medical exam.
Adjustment of Status vs Consular Processing — When the Exam Happens
If you are going through consular processing, meaning your immigrant visa interview is at the US Consulate General in Lagos, the medical exam takes place in Nigeria before that interview. Not after. Before. You complete it with a panel physician approved by the US Embassy, and the results are sent directly to the consulate as part of your immigrant visa file.
If you’ve already entered the US and are filing Form I-485 to adjust to permanent resident status, the exam happens in the US with a USCIS-designated civil surgeon. Results go on Form I-693, which gets submitted with your adjustment package.
The two paths don’t share doctors, forms, or timelines. Knowing which one you’re on before you start is what keeps the rest of the process from stalling.
Where to Go in Nigeria For The Medical Exam
Your US immigration medical exam cannot be done at just any clinic. It must be conducted by a panel physician approved by the US Consulate General in Lagos.
Current approved locations include:
- IOM Migration Health Assessment Centre — Lagos and Abuja. The International Organization for Migration runs dedicated immigration medical assessments and is the most familiar option to the consulate.
- Q-Life Family Clinic — Lagos
Before you book, verify the current approved list directly with the US Embassy in Nigeria, as providers can be added or removed without notice.
Check out the list on Packet March 2025
Timing
Schedule no more than three months before your visa interview. The results have a validity window, and going too early means they may expire before your interview date. That means starting the whole process over.
At the same time, don’t cut it too close. Leave at least seven to ten days between your exam and your interview. Some tests, particularly TB screening, take time to process, and pending results on your interview date creates a problem you don’t need at that stage.
The Medical Exam Process – What Actually Happens
Most Nigerian applicants going through this for the first time have no idea what happens inside the clinic. It’s not complicated, but it covers more ground than people expect.
The physician starts with a physical: height, weight, blood pressure, vision, and hearing. A chest X-ray follows for most adult applicants, which is the primary TB screening tool. Blood gets drawn for syphilis and, depending on your age and history, other conditions. Your vaccination record gets reviewed, and there’s a brief mental health and substance use assessment at the end.
Budget one to three hours. If your documentation is complete when you arrive, the appointment is usually shorter. Incomplete vaccination records change that. Titer tests and same-day vaccinations push both the time and the bill up considerably.
Vaccination Requirements That Catch Nigerian Applicants Off Guard
Vaccination records are the most common reason for delays in medical exams. Usually, not health conditions. If you grew up in Nigeria in the 70s, 80s, or even 90s, there is a reasonable chance your childhood vaccination records are a handwritten yellow card from a government clinic that may no longer exist. Faded, incomplete, water-damaged, or simply not found when you go looking.
The panel physician needs to see documentation of the vaccines you had as a child. When it cannot be provided, you either take a blood titer test to prove immunity or get vaccinated that same day. Both options are manageable. Neither is ideal when you’re coordinating this with an interview window.
The Full List of Required Vaccines For Medical Exam
Per CDC Technical Instructions for panel physicians, required vaccines include:
- Diphtheria, Tetanus, Pertussis
- Polio
- Measles, Mumps, Rubella (MMR)
- Haemophilus influenzae type b (Hib)
- Hepatitis A and B
- Meningococcal
- Varicella (chickenpox)
- Pneumococcal
- Influenza (seasonal)
- Any additional vaccines on the ACIP recommended schedule at the time of your exam.
That list applies whether you’re completing a consular exam in Nigeria or an adjustment of status exam in the US.
For the latest information on new vaccination requirements: https://travel.state.gov/content/travel/en/us-visas/immigrate/vaccinations.html
How To Handle Vaccines You Can’t Get Records Of
You have two options:
Titer test. A blood test that checks whether your immune system shows evidence of prior vaccination. If it does, no record is required. If it doesn’t, you move to option two.
On-site vaccination. The clinic administers whatever is missing on the day, and you will be charged for it. If your records are incomplete across multiple vaccines, those costs add up. Get a realistic estimate from the clinic when you book, so it’s not a surprise on the day.
Vaccination Exemptions
Exemptions exist but are genuinely rare. A vaccine can be formally exempted on documented medical grounds for a contraindicated condition, or for a sincere religious belief. The panel physician documents the exemption, and immigration authorities review it. If you believe this applies to you, raise it with your immigration attorney. Not for the first time inside the clinic.
Medical Conditions That May Affect Your Application
The US immigration medical exam isn’t about your general health. It exists to screen for conditions that US immigration law categorizes as grounds for inadmissibility. which is a different thing entirely. Understanding what’s on that list before you walk in means you can prepare documentation rather than get caught off guard.
Communicable Diseases For Public Health Significance
Section 212(a)(1)(A) of the Immigration and Nationality Act covers communicable diseases of public health significance. In practice, that means the exam looks for untreated tuberculosis, untreated syphilis, and a handful of other infectious conditions. The word untreated is doing a lot of work in that sentence. A condition that was treated and documented reads very differently to a reviewing officer than one that appears with no history attached.
How TB Testing Works for Nigerian Applicants
TB screening is a standard for most applicants: a chest X-ray, and if the result is positive, further evaluation and a review of their treatment history. As a Nigerian applicant, prior TB exposure is more common than in many other countries. A positive screening result is not unusual and does not mean automatic disqualification. What matters is whether the TB is currently active, not whether you had prior exposure. If you have a known TB history or have previously received treatment, bring that documentation to the clinic. Don’t assume the panel physician will only ask if it comes up.
Mental Health and Substance-Related Conditions
This exam includes a review of any physical or mental health conditions affecting functionality, and for active substance dependence. If your medical history touches on either of these areas, have that conversation with your immigration attorney before the clinic appointment. Not after.
Form I-693: What It Is and How Long It Stays Valid
For adjustment of status applicants inside the US, exam results go onto Form I-693, the Report of Immigration Medical Examination and Vaccination Record, signed by a USCIS civil surgeon and filed alongside your I-485.
Consular applicants don’t deal with an I-693 directly. The results go through the consulate’s own system. That said, if you ever enter the US after approval and later need to file for adjustment of status, the I-693 becomes relevant. Worth knowing before you’re in that situation.
How Long Does It Stay Valid?
The I-693 validity rules changed twice in quick succession, so the current position is worth understanding carefully. USCIS initially ruled in April 2024 that forms signed on or after November 1 2023, would never expire. That policy was reversed on June 11, 2025.
Under the current rule (USCIS June 2025 policy update), a form signed on or after November 1 2023, is valid only for the duration of the specific application it was submitted with. If that application is denied or withdrawn, the form loses its validity immediately, and a new medical exam is required for any future filing.
Forms signed before November 1 2023, retain a two-year validity from the civil surgeon’s signature date. USCIS officers also retain discretion to request a new exam if they believe your medical condition has changed.
What If It Expires Before Your Case Is Decided?
If that happens, USCIS will issue an RFE (Request for Evidence) directing you to redo the exam with a US civil surgeon and submit an updated I-693.
How Medical Waivers Work If You Have a Disqualifying Condition
If your US immigration medical exam shows a condition that creates an admissibility issue, a medical waiver using Form 1-601may be available. These are reviewed on a case-by-case basis and require detailed medical documentation. They are never guaranteed and involve complex legal standards. If anything in your medical history could be relevant, raise it with your qualified immigration attorney before the exam. Not after you receive results you weren’t expecting.
Where Veripass Comes In
By the time you’re looking at a US immigration medical exam, you’ve already done significant work. A petition was built, evidence gathered, and approvals obtained. Months of process, often longer. The medical exam should be a final administrative step. Not the thing that creates a three-month delay because a vaccination record nobody thought to chase down early.
Veripass works specifically with Nigerian founders, executives, and professionals navigating O-1A, EB-1A, and EB-2 NIW pathways. That means reviewing your vaccination history before the appointment, coordinating exam timing with your interview window, and making sure the documentation is complete before anything is submitted. Not after a problem surfaces.
The medical exam shouldn’t be what holds up your green card. Book a strategy session with the Veripass team for a full walkthrough of the process: what to prepare, what to avoid, and how to time it right.
Can I do the US immigration medical exam in Nigeria before travelling to the US?
For consular processing applicants, it’s not just possible – it’s mandatory. The exam must be completed with an approved panel physician in Nigeria before you sit for your visa interview in Lagos. You can’t do it after. The results go to the consulate as part of your immigrant visa file, so if you haven’t completed it, your interview doesn’t move forward.
What vaccines are actually required?
The full list runs longer than most people expect: MMR, polio, diphtheria, tetanus, pertussis, hepatitis A and B, meningococcal, varicella, pneumococcal, influenza, plus anything else on the ACIP-recommended schedule at the time of your exam. COVID-19 was removed from the required list as of March 11, 2025. That last part matters because the list does get updated. If your records can’t prove you’ve had prior vaccination, the clinic will either run a titer test to check for immunity or vaccinate on the spot. Sometimes both.
What does the exam cost in Nigeria?
There’s no fixed number because it depends on what you’re missing. The base exam fee covers the appointment itself, but chest X-rays, blood work, and any vaccines given on the day are charged separately. If your records are incomplete, across three or four vaccines, those additional costs add up faster than people expect. When you call to book, ask for an itemized estimate based on your vaccination history rather than just the base fee.
How long does the I-693 stay valid?
For forms signed after November 1, 2023, validity runs throughout your application process. While earlier Forms still maintain the two-year expiration standard. Policy has changed in this area; verify with USCIS guidance for your filing period.
Can a health condition affect my green card approval?
Certain things can create admissibility issues under US immigration law — untreated communicable diseases and active substance dependence being the main ones. The operative word there is untreated. If you have a documented treatment history, that changes the assessment considerably. Whatever is in your medical background that might be relevant, raise it with your immigration attorney before the exam appointment, not afterwards when your options are narrower.
This article is for informational purposes only and does not constitute legal or medical advice. Immigration law and policy change regularly. Consult a licensed immigration professional for guidance specific to your circumstances.
