The ISSB Medical Examination: Eyesight, Height, Weight & Fitness Standards

Understanding the ISSB medical test requirements early can save a candidate a great deal of disappointment, because medical fitness is one of the decisive stages of officer selection in Pakistan's armed forces. The medical examination assesses whether you meet the physical health standards required for a commission — covering eyesight, height, weight, hearing, and general fitness. Crucially, these standards vary by service and by branch, so this guide explains what the examination broadly covers and, just as importantly, where to confirm the exact, current criteria that apply to you.

Where the Medical Fits in the Process

The five-day ISSB assessment focuses on intelligence, personality, and Officer-Like Qualities. The detailed medical examination is a separate, decisive requirement in the overall selection journey. A candidate can perform strongly across the psychological, Group Testing Officer (GTO), and interview stages and still be unable to proceed if they do not meet the medical standard — which is why it is worth understanding the ISSB medical test requirements before you invest months preparing.

Before anything else, confirm your basic eligibility, including age and education, on our eligibility checker. It is the single most efficient way to find out whether you should be applying at all, and it prompts you toward the official criteria for the specifics.

What the Medical Examination Broadly Covers

The medical examination is thorough. While the precise standards differ by service and branch, the examination generally assesses the following areas.

Eyesight

Vision standards are among the most commonly asked-about requirements — particularly for flying branches, where they are strict. The examination typically assesses visual acuity (with and, where relevant, without correction), colour vision, and general eye health. Requirements for a General Duty Pilot in the Pakistan Air Force are considerably more demanding than for many ground or administrative branches.

Because eyesight requirements are highly branch-specific and are periodically revised, do not rely on figures from unofficial sources or older candidates. Confirm the current standard for your intended branch directly.

Height and Weight

A minimum height is generally required, and weight is expected to be proportionate to height and age — assessed against a healthy range rather than a single figure. Being significantly underweight or overweight for your height can be a concern, and body mass is evaluated as part of overall fitness.

As typical published figures, minimum height requirements for male candidates have historically been in the region of around 5 feet 4 inches, with different (generally lower) minimums for female candidates and some variation by service and branch — but treat these as indicative only. Always confirm current criteria on the official service recruitment portals, as they are periodically updated.

Hearing

Auditory acuity is tested. Normal hearing is generally required, with branch-specific standards for roles where hearing is operationally critical.

General Physical Health

The examination also screens general health and looks for conditions that could affect performance or be aggravated by service. This commonly includes:

• Blood pressure and cardiovascular health
• Dental health
• Musculoskeletal condition (limbs, spine, joints, and flat feet in some cases)
• Skin conditions
• History of chronic illness or significant surgery
• Basic laboratory screening

Any pre-existing condition should be discussed honestly. Concealing a medical history is unwise — examinations are thorough, and honesty protects both you and the service.

Standards Vary by Service — Confirm Them Officially

This point is important enough to state plainly: there is no single, universal ISSB medical standard. The Army, Navy, and Air Force each publish their own requirements, and within each service, different branches (a pilot versus an engineer versus an administrative officer, for example) carry different standards.

Do not treat a specific number quoted by a friend, a coaching centre, or an old forum post as authoritative. The only reliable sources are the official service recruitment portals:

• Pakistan Army — joinpakarmy.gov.pk
• Pakistan Air Force — joinpaf.gov.pk
• Pakistan Navy — joinpaknavy.gov.pk

Check the current, branch-specific medical requirements there before you apply. If you have a specific concern — a borderline vision measurement, a past injury, a chronic condition — the recruitment directorate is the correct place to seek an authoritative answer.

Common Medical Concerns Candidates Ask About

A few areas generate the most questions. In every case, the guidance is the same: treat the points below as general orientation, and confirm your specific situation against the official portals or with a qualified medical professional.

• Glasses and corrected vision. Whether corrected vision is acceptable, and to what degree, is highly branch-specific — flying branches are the strictest. Do not assume that wearing glasses disqualifies you from every branch, and do not assume it is acceptable everywhere. Confirm the standard for your intended branch.
• Colour vision. Colour blindness affects eligibility for certain roles, particularly operational and flying branches. If you have never been tested, it is worth checking early, because it is a fixed factor you cannot change and it shapes which branches are realistic for you.
• Flat feet, knock knees, and posture. Certain musculoskeletal conditions are assessed. Some are minor, some are not; an honest check with a doctor gives you an accurate picture rather than second-hand speculation.
• Old injuries and surgeries. A history of significant injury or surgery is assessed on its specifics. Disclose it honestly; concealment is both risky and usually futile given the thoroughness of the examination.
• Dental issues. Dental health is examined, and outstanding problems are best addressed in advance.
• Weight outside the healthy range. Being underweight or overweight for your height is one of the more addressable concerns, given enough lead time.

Because standards are periodically revised and differ by service and branch, resist the temptation to rely on what a friend was told or what an older forum post claims. The official recruitment portals are the authoritative source for every one of these.

How to Prepare for the Medical

Some medical factors are fixed; others you can genuinely improve with lead time.

Improve What You Can

• Weight. If you are outside the healthy range for your height, a structured diet and exercise programme begun months ahead can bring you within range. This is one of the most fixable factors.
• General fitness. Cardiovascular health, blood pressure, and overall condition respond well to consistent aerobic exercise and sensible habits.
• Dental health. Address any outstanding dental issues before the examination.
• Lifestyle. Adequate sleep, hydration, and avoiding tobacco all support the general-health screening.

Get an Honest Baseline

If you have any doubt about a specific standard — especially eyesight — consider a check-up with a qualified doctor well in advance. Knowing where you stand early lets you address correctable issues, or make an informed decision about which branch suits you, rather than discovering a problem at the examination itself.

Do Not Attempt Risky Fixes

Be cautious about aggressive or unproven attempts to meet a standard artificially before an examination. Prioritise your long-term health, and rely on legitimate, medically sound preparation.

Fitness Feeds Every Part of Selection

Preparing physically for the medical also strengthens your performance across the rest of the ISSB process. The GTO obstacle courses reward genuine fitness, and physical vitality contributes to the liveliness and stamina that evaluators observe throughout the five days. A candidate who has built real aerobic capacity and functional strength benefits at the medical and at the board. To see how the physical demands sit within the wider assessment, read our complete guide to the ISSB five-day process.

Where the Medical Sits in Your Overall Timeline

It is worth being deliberate about when you address medical readiness relative to the rest of your preparation. The fixed factors — height, colour vision, and any structural conditions — should be understood as early as possible, because they may shape which service and branch you realistically pursue. There is little sense in preparing intensively for a flying branch if a fixed vision or colour-vision factor rules it out; knowing early lets you redirect toward a branch that suits you.

The improvable factors — weight, general fitness, blood pressure, and dental health — respond to lead time, so build them into the same months-long preparation window you use for reasoning, current affairs, and the psychological tests. A structured plan that treats the medical as one stream among several, rather than an afterthought, is the surest approach. Our guide on how to pass ISSB in your first attempt sets out how to sequence physical, academic, and psychological preparation together over three to six months.

Honesty at the Medical

A final point deserves emphasis. The examination is thorough, and it is conducted by qualified medical professionals. Attempting to conceal a condition — a past injury, a chronic illness, a vision problem — is both unlikely to succeed and unwise. Beyond the risk of discovery, medical standards exist to protect you: a service role that would aggravate an undisclosed condition is not in your interest to enter. Approach the medical honestly, address in advance what you legitimately can, and let the examination give you and the service an accurate picture of your fitness.

Confirm Your Eligibility, Then Prepare

Medical fitness is one requirement among several, and it is service- and branch-specific. Start by confirming your overall eligibility on this platform, then verify the exact medical standards for your intended branch on the official recruitment portal. Once you know you qualify, build the trainable skills — reasoning, general knowledge, and the psychological tests — with free, expert-evaluated practice, reviewed under the supervision of our expert panel, so that when you meet the medical standard, the rest of your preparation is already well under way.