If you search merchant navy forums for long enough, you’ll find a recurring category of question that doesn’t get answered clearly anywhere: “I had a fracture a few years ago and it was fixed with a plate/screws — can I still join merchant navy?” It’s a fair question, it comes up regularly, and most of the answers floating around in comment sections are guesses, secondhand stories, or “ask a doctor” non-answers. This article lays out what DG Shipping’s own published medical standards actually say, so you’re working from the real criteria instead of forum speculation.
A quick note before we go further: every case is genuinely individual. Nothing in this article replaces an actual assessment by a DGMA-approved medical examiner, and if you’re dealing with this question for yourself, that assessment is the one step you should not skip or delay.
Where These Standards Actually Come From
Merchant navy medical fitness in India is governed by rules originally issued as DG Shipping’s Merchant Shipping (Medical Examination) Rules, now administered under DGMA — the Directorate General of Maritime Administration — following the Merchant Shipping Act 2025 reorganisation that renamed DG Shipping and moved its functions to the new authority. These aren’t guidelines an individual institute made up; they’re the same national standard every DGMA-approved training institute and DGMA-approved medical examiner applies, which is why the language you’ll find published across multiple institutes’ admission pages tends to be nearly identical — they’re all reproducing the same official criteria.
The standard opens with a general principle worth understanding before the specific rules: a candidate must be “in good mental and physical health and free from any deficiency likely to interfere with the efficient performance of duties.” That phrase — “likely to interfere with the efficient performance of duties” — matters, because it signals that the specific criteria listed afterward exist to serve a functional purpose (can you actually do the physically demanding, safety-critical work of a seafarer, potentially far from any hospital), not an arbitrary checklist.
What the Skeletal System Criteria Actually Say
The published standard’s section on the skeletal system is specific, and it’s worth reading in full rather than paraphrasing loosely, since the exact wording matters for anyone trying to understand where they stand:
There should be no disease or impairment of the function of bones or joints. Candidates must be free from any contraction or deformity of the chest or any joint. The standard explicitly names several specific conditions as disqualifying: abnormal curvature of the spine, deformity of the legs and feet such as bow legs, knock knee, or flat feet, deformity of the upper limbs, malformation of the head, and deformity from fractures or depression of the skull.
Then comes the line that answers the specific question this article opened with: a healed fracture with an internal pin will also be a disqualification. This is stated plainly, without a qualifying time period or severity threshold attached — unlike some other conditions in the broader standard, there’s no “after X years, if fully recovered” exception written into this particular clause.
It’s worth being precise about what this covers. The clause is about a fracture that has been treated with retained internal hardware — a pin, and by clear extension the same category of fixation devices like plates and screws used in modern orthopedic fracture repair (open reduction and internal fixation, commonly referred to as ORIF). A simple fracture that healed on its own, or with a cast, and left no hardware behind and no lasting deformity, is a different situation entirely and isn’t automatically covered by this specific clause — though any resulting deformity or functional limitation would still fall under the broader skeletal criteria above it.
The Useful Contrast: How Hernia Surgery Is Treated Differently
One of the clearer ways to understand how DG Shipping’s medical standards actually work is to look at a condition they treat more leniently, in the same published document. The standard’s section on the genitourinary system explicitly addresses candidates who’ve had hernia surgery, and it lays out a path to fitness rather than a blanket disqualification: candidates are eligible to be declared fit provided at least one year has elapsed since the operation (with documentary proof required), the general tone of the abdominal muscles is good, and there’s been no recurrence of the hernia or complications from the surgery.
This matters because it shows the standard isn’t uniformly strict or uniformly lenient — it makes distinct judgments about different conditions based on their actual risk profile for sea duty. A healed hernia with a year of confirmed good recovery and no complications is treated as fully compatible with sea service. A fracture healed with retained internal hardware is treated as an outright disqualification, with no stated waiting-period exception. If you’re trying to reason about your own situation by analogy to something you’ve heard about a friend or forum post, this is exactly why that doesn’t work reliably — different conditions genuinely carry different standards, and assuming one applies to another can lead you badly astray.
Why the Bar Is Higher for Seafarers Than Most Careers
It’s worth explaining the “why” here, because understanding the logic makes the standard feel less arbitrary. A merchant navy career involves physically demanding, safety-critical duties performed in an environment fundamentally different from almost any shore-based job: climbing vertical ladders between decks, working at height on masts and gangways, handling heavy mooring lines and cargo-securing equipment, responding to emergencies like fires or flooding where full physical capability can be the difference between a manageable incident and a serious one, and doing all of this for months at a stretch with no possibility of quick evacuation to a hospital if something goes wrong. A joint or bone that’s structurally compromised — even if it functions well in ordinary day-to-day shore life — carries a different risk profile in that environment. That’s the functional logic behind why standards that would seem unusually strict for, say, an office job or even most other physically active careers, make sense specifically for sea service.
What Actually Happens During the Medical Examination
It helps to know what the process itself looks like, since a lot of the anxiety around this topic comes from not knowing how a fracture or implant history would even come up. The pre-sea medical examination at a DGMA-approved centre includes a physical examination of the skeletal system alongside the standard battery of tests — vision, hearing, blood work, chest X-ray, and general physical assessment. If you have a documented history of a fracture, surgery, or retained hardware, the examining doctor will typically want to see your medical records: the original treatment documentation, any follow-up imaging, and confirmation of the current state of healing. Turning up without this paperwork, hoping it won’t come up, is not a workable strategy — an old surgical scar or an implant visible on imaging will be noticed regardless, and arriving prepared with your actual medical history in hand generally gets you a faster, more informed assessment than trying to avoid the topic.
If your case genuinely falls into a grey area — for instance, hardware that was later removed once the bone fully healed, which is a common orthopedic practice for certain fracture types — that’s exactly the kind of detail a generic article cannot rule on for you, and exactly why an early, honest conversation with a DGMA-approved examiner matters more than trying to interpret the published wording yourself.
What This Means Practically, By Situation
If you have no fracture or surgical history at all, none of this applies to you directly, though it’s still useful background for understanding what the medical examination actually screens for.
If you had a fracture that healed completely with no retained hardware and no lasting deformity, this specific clause likely doesn’t disqualify you, but get it confirmed by a DGMA-approved medical examiner rather than assuming — “completely healed” and “no lasting deformity” are clinical judgments, not something to self-diagnose from an old X-ray you remember loosely.
If you had a fracture treated with a plate, screws, or pin that’s still in place, the published standard names this as a disqualifying condition. This is the single most important piece of information in this article for anyone in that situation, and it’s worth knowing clearly and early — before, not after, investing a year or more into DNS, GME, or IMU-CET preparation on the assumption that it wouldn’t matter.
If you’re not sure which category you fall into, or you have a related but different orthopedic history not covered explicitly above (a joint replacement, a spinal condition, a significant old sports injury that was never surgically treated), the honest answer is that you need an individual medical opinion, not a generic article. Book an assessment with a DGMA-approved medical examiner and ask directly and specifically about your exact history. It’s a small time and cost investment that protects you from a much larger loss of time and money later.
If You’re Found Unfit for Sea Service Specifically
If a medical assessment does rule out merchant navy for you on these grounds, it’s worth knowing what that doesn’t mean. It doesn’t mean your PCM preparation was wasted — the same Physics, Chemistry, and Mathematics foundation that IMU-CET draws on is directly usable for JEE and other engineering entrance exams, so a redirection in career path doesn’t require starting your academic preparation over. It also doesn’t mean every maritime-adjacent role is closed to you; some shore-based roles in shipping, logistics, port operations, and maritime administration have different, less physically demanding fitness requirements, though those are a separate research question from sea-going certification.
The point of this article isn’t to discourage anyone from pursuing merchant navy — it’s to make sure you’re making that decision with the real, published criteria in hand instead of forum guesswork, early enough that a “no” doesn’t cost you a year of preparation you didn’t need to spend. If merchant navy does turn out to be the right and eligible path for you, SailorGPT and the IMU-CET Cracker Pack are there to help you prepare for the parts of the process that are actually within your control — the exam, the sponsorship process, and selection — once the medical question is settled.