Only 1 in 10 Make It: Why So Many BUD/S Trainees Ring the Brass Bell
The top 10 reasons BUD/S trainees quit — ring the brass bell — Navy SEAL Training come down to one brutal truth: most candidates are physically ready, but mentally unprepared for what waits in Coronado.
Here is a quick answer if you need it fast:
- Cold water exposure and surf torture — the Pacific Ocean breaks people fast
- Sleep deprivation and Hell Week exhaustion — only ~4 hours of sleep over 5.5 days
- Mental fatigue over physical limits — the mind quits before the body does
- Water confidence and aquatic panic — drown-proofing terrifies even strong swimmers
- Physical injuries and "quinjuries" — some quit and blame an injury to save face
- The "Mafia" and peer pressure — repeat candidates who harass first-timers
- Unrealistic expectations and culture shock — the reality looks nothing like the marketing
- PEDs and a cheating culture — steroids and moral ambiguity poison the environment
- Lack of a deep "why" — wanting to be a SEAL because it looks cool is not enough
- Inability to work as a team — lone wolves don't survive boat crew life
BUD/S — Basic Underwater Demolition/SEAL training — has a roughly 90% attrition rate. In some classes, only 16 out of 140 men have crossed the finish line. As of June 2026, those numbers have barely budged in decades despite improvements to selection and preparation methods.
The brass bell hanging outside the Naval Special Warfare Center is not just a prop. It is a one-way door. Ring it three times, leave your helmet on the ground, and you're done — no second thoughts, no coming back that day.
I'm Larry Fowler, BUD/S Class89, publisher of USMilitary.com and a longtime resource for servicemembers navigating military careers and benefits — I've spent years covering the top 10 reasons BUD/S trainees quit ring the brass bell Navy SEAL training and the preparation gaps that send even elite athletes home early. Let's break down every reason, so you go in with your eyes open.
Basic Top 10 Reasons BUD/S Trainees Quit (Ring The Brass Bell) Navy SEAL Training terms:
- Navy SEALs BUD/S Training Requirements
- What is Navy SEAL Training 3 Phases And WHy is it so tough
- A Day In The Life Of A Navy SEAL Operator
The Symbolism of the Brass Bell in Navy SEAL Selection
The brass bell at the Naval Special Warfare Center in Coronado, California, is perhaps the most iconic and feared object in military selection history. It is a simple, polished brass instrument, but its psychological weight is immeasurable. When a trainee decides they can no longer endure the cold, the pain, or the sheer exhaustion, they must walk up to this bell and ring it three times.
Ringing the bell is the formal act of declaring a Drop on Request (DOR). Once those three clear rings echo across the compound, the candidate must place their green swim kutz (or helmet) on the ground in a designated row. This "helmet row" serves as a growing, silent graveyard of broken ambitions. It is a highly visible reminder to the remaining candidates of how easy it is to escape the misery.
Historically, the bell represents the dividing line between those who merely want the title of Navy SEAL and those who possess the deep, unyielding drive to earn it. The Navy SEAL Museum highlights how The Bell - The Navy SEAL Museum San Diego remains a historical testament to the extreme standards of Naval Special Warfare. It is the ultimate filtering mechanism, ensuring that only the most resilient individuals advance to the next stages of the BUD/S Training pipeline.
Why the Brass Bell Symbolizes the Top 10 Reasons BUD/S Trainees Quit (Ring The Brass Bell) Navy SEAL Training
The bell operates as a psychological exit ramp. Throughout the agonizing weeks of First Phase, instructors constantly remind trainees that their suffering can end in an instant. All they have to do is ring the bell, and they will immediately get a hot shower, a warm meal, and a clean bed.
This creates a constant internal debate within a trainee's mind. The bell is a one-way door; once rung, there is virtually no turning back. As discussed in online forums exploring What happens in Navy SEAL training if you ring the bell to quit but ... , changing your mind a split second after ringing it is not an option. The instructors will not allow a candidate to undo the decision. It requires a permanent, conscious surrender, making the bell the ultimate symbol of voluntary failure.
The Reality of the Bell: Top 10 Reasons BUD/S Trainees Quit (Ring The Brass Bell) Navy SEAL Training
To understand why the failure rate remains so incredibly high, we have to look at the statistical breakdown of how and why candidates leave. While the Navy does its best to prepare candidates through rigorous pre-BUD/S screening, the actual training environment is designed to find and exploit any hidden weakness.
Historically, about 70% to 80% of BUD/S candidates drop out before graduation, with some modern classes seeing attrition spike even higher. Between 2021 and 2022, the failure rate in the First Phase of BUD/S spiked to nearly 50% during certain cycles.
To put the attrition into perspective, let's look at how drops typically split between voluntary surrenders and physical removals:
| Attrition Type | Historical Percentage of Attrites | Primary Triggers |
|---|---|---|
| Voluntary Drop (DOR) | ~40% to 41% | Mental surrender, cold, sleep deprivation, loss of motivation |
| Medical Drop | ~29% to 39% | Pneumonia, fractures, extreme hypothermia, soft tissue damage |
| Performance/Academic Drop | ~20% to 30% | Failing run/swim times, failing pool comp, failing land navigation |
While many believe that physical breakdown is the sole driver of attrition, the data proves that voluntary drops (DOR) remain the leading cause of failure. Let's explore the top 10 reasons why these candidates choose to ring the bell.
1. Cold Water Exposure and Surf Torture
If you ask any BUD/S graduate what the worst part of training was, they will rarely say the running or the push-ups. They will say the cold. The Pacific Ocean off Coronado is notoriously cold, with water temperatures frequently hovering in the low 50s.
"Surf torture" — where trainees are ordered to lie down in the breaking surf, holding hands, while the cold water repeatedly rushes over them — is designed to induce mild hypothermia. The constant, uncontrollable shivering drains a candidate’s energy reserves faster than any workout. The instructors use the cold as a psychological wedge. They know that when a human body is freezing and wet, the brain desperately screams for warmth. Many candidates walk up to the bell simply because they cannot face the thought of getting back into the dark ocean one more time.
2. Sleep Deprivation and Hell Week Exhaustion
Hell Week is the ultimate test of endurance, occurring in the sixth week of First Phase. Over the course of five and a half days, trainees are subjected to continuous physical training with a maximum of four hours of sleep total.
This level of sleep deprivation induces vivid hallucinations, severe cognitive decline, and extreme physical exhaustion. Trainees have been known to fall asleep while standing up, paddling boats, or even running. As the days drag on, the body's ability to repair itself completely shuts down. The sheer exhaustion breaks down the mental walls of even the toughest candidates, leading many to ring the bell between Tuesday and Thursday of Hell Week when the finish line feels impossibly far away. For more detail on this brutal phase, read about Navy SEAL Hell Week.
3. Mental Fatigue vs. Physical Prowess
BUD/S is frequently described as a game that is 90% mental and only 10% physical. While a candidate must be in peak physical condition to survive the daily grind, raw physical prowess is never enough. Instructors run constant mind games, telling trainees they are the worst class they’ve ever seen, or offering false promises of rest only to demand more work.
When elite Division I athletes or highly conditioned fitness enthusiasts arrive at Coronado, they are often used to winning. When they are subjected to constant criticism and forced to perform under extreme discomfort, their mental armor cracks. If a candidate relies solely on their physical strength without developing deep mental resilience, they will quickly find themselves overwhelmed when their muscles fatigue and their mind begins to wander.
4. Water Confidence and Aquatic Panic
Water confidence is entirely different from being a good swimmer. A candidate can be a champion pool swimmer but still fail miserably during BUD/S water events. The training requires candidates to perform complex tasks under water while experiencing simulated emergencies.
Events like "drown-proofing" (where a candidate's hands and feet are bound while they must bob, float, and swim in a deep pool) and "pool comp" (where instructors attack a student underwater, cutting off their air supply) are designed to trigger a primal panic response. If a trainee has even a seed of fear regarding deep water or restricted breathing, the instructors will find it. Once panic takes over, the candidate fails the evolution, and the fear of facing that panic again drives many to quit.
5. Physical Injuries and "Quinjuries"
The physical toll of BUD/S is immense. Trainees run miles in heavy boots on soft sand, carry logs weighing hundreds of pounds, and navigate obstacle courses daily. This leads to a massive rate of physical injuries, including stress fractures, torn ligaments, and severe pneumonia.
However, there is a distinct difference between a genuine medical drop and what the community calls a "quinjury." A quinjury occurs when a candidate decides mentally that they want to quit, but they use a minor ache, shin splint, or cold as a convenient excuse to save face. It is far easier to tell family and friends back home, "I had to leave because of a bad knee," than to admit, "I couldn't handle the cold and I voluntarily quit."
6. The "Mafia" and Peer Pressure
A lesser-known dynamic within the BUD/S compound is the influence of repeat candidates, often referred to as the "Mafia." These are trainees who were rolled back from previous classes due to medical issues or performance failures. Because they have already been through portions of the training, they often wield significant social power.
In some cycles, a toxic subculture can emerge where these repeat candidates form cliques. They may target first-time candidates, using peer pressure, kangaroo courts, or subtle harassment to force out those they deem "unworthy." This peer-to-peer friction can make the training environment feel incredibly hostile, causing some highly capable candidates to drop out because they feel completely isolated from their own team.
7. Unrealistic Expectations and Culture Shock
Many candidates arrive at Coronado with an idealized, Hollywood-inspired view of what it means to be a Navy SEAL. They expect tactical shooting, high-speed operations, and heroic missions from day one.
Instead, they are met with the stark, brutal reality of First Phase: endless hours of cleaning corridors, scrubbing boats, standing in freezing water, and being screamed at by instructors. This massive gap between marketing and reality causes immediate culture shock. When candidates realize that the road to the Trident involves months of grinding, unglamorous physical labor and psychological degradation, their motivation evaporates.
8. Performance-Enhancing Drugs (PEDs) and Cheating Culture
In recent years, the pressure to survive BUD/S has led to a controversial undercurrent of performance-enhancing drug (PED) use. Because the physical demands are so extreme, some candidates cycle on steroids, SARMs, or elevated testosterone to help their bodies recover faster between grueling workouts.
This creates an uneven and highly toxic training environment. Candidates who choose to remain clean are forced to compete against those using chemical assistance, driving the clean candidates to physical burnout or injury. Furthermore, a culture of "if you ain't cheating, you ain't trying" can sometimes take root, where moral ambiguity is tolerated or even rewarded. For candidates who value absolute integrity, this cultural shift can be incredibly disheartening, leading them to ring the bell rather than participate in a system that feels compromised.
9. Lack of a Deep "Why" and Motivation
Why do you want to be a Navy SEAL? If the answer is "because it looks cool," "to get girls," or "to write a book," the candidate will almost certainly fail. These are external motivators, and external validation is the first thing to burn away when you are shivering in 50-degree water at two o'clock in the morning.
To survive, a candidate must have an incredibly deep, internal "why." It must be a purpose so deeply rooted in their identity that no amount of cold, pain, or humiliation can shake it. Without this foundational motivation, the mind will naturally seek the easiest path to comfort — which is walking over to that brass bell and ringing it three times.
10. Inability to Work as a Team
The Navy SEAL teams do not have room for "lone wolves." Every evolution in BUD/S, from carrying heavy inflatable boats (IBS) on your head to log PT, requires absolute synchronization with your class.
If a candidate is selfish, arrogant, or refuses to help a struggling teammate, they will quickly be identified by both the instructors and their peers. Peer reviews are a formal part of the selection process; if a candidate is consistently rated poorly by their classmates for lacking team spirit, they will be dropped. Many highly athletic individuals fail simply because they cannot swallow their ego and work as part of a cohesive boat crew.
The Psychological Battle: Mind vs. Body in Coronado
At its core, BUD/S is not a test of physical fitness; it is an administrative process designed to find the exact point where a person's mind surrenders to their body. The human body is capable of far more work than the average person believes possible, but the mind acts as a protective governor, screaming at us to stop when pain and exhaustion set in.
Psychological Factors Behind the Top 10 Reasons BUD/S Trainees Quit (Ring The Brass Bell) Navy SEAL Training
In the landmark military research paper, Counterattrition in Basic Underwater Demolition/Seal Program: Selection and Training , researchers discovered that a candidate's personality and attitude scores were far more accurate predictors of graduation than their raw physical screening test (PST) scores.
The instructors at Coronado are masters of psychological warfare. They do not just yell; they carefully craft environments where candidates are forced to make choices under extreme stress. When you are told you are the worst student in the class, or when you receive constant negative feedback despite your best efforts, it tests how you process failure. Those who rely on external praise quickly crumble, while those who possess quiet self-reliance and internal drive find a way to take training one small step at a time.
Frequently Asked Questions About BUD/S Attrition
What happens to candidates after they ring the bell and drop out of BUD/S?
When a trainee rings the bell and drops out, they do not simply go home. If they are already enlisted in the Navy, they are sent back to the regular fleet as "undesignated sailors." This often means being assigned to a surface ship where they will perform general, labor-intensive maintenance like chipping paint, swabbing decks, and handling lines. For high-achieving individuals who dreamed of being elite operators, this sudden transition to fleet life can be an incredibly jarring shock.
What is the difference between a "quinjury" and a genuine medical drop?
A genuine medical drop occurs when the command’s medical board determines that a candidate has sustained an injury so severe (such as a broken femur, severe pneumonia, or extreme hypothermia) that continuing would cause permanent damage or death. In these cases, the candidate is often "rolled" to a medical division to heal and join a later class. A "quinjury," on the other hand, is a voluntary quit disguised as an injury. The candidate mentally surrenders but uses a minor, common ache as an administrative excuse to quit while saving face.
How much do your chances of graduating improve after completing Hell Week?
Completing Hell Week is the single biggest milestone in the BUD/S pipeline. Once a candidate survives Hell Week, their historical chances of graduating rise to roughly 50%. After passing the highly technical "pool comp" in Second Phase, those chances jump to 80%. By the time a trainee reaches the land warfare phase (Third Phase), the graduation rate climbs to nearly 90%, as the focus shifts from pure weeding-out selection to actual tactical training.
Larry, the amazing and Honor Man Doug Young and awesome Scott Rawding with the BUD/S Class 89 Plaque Still Displayed in BUD/S Compound.
Conclusion
The journey through Coronado is designed to be the ultimate test of human willpower. The top 10 reasons BUD/S trainees quit — ring the brass bell — Navy SEAL Training serve as a stark reminder that physical preparation is only the entry ticket. The real battle is fought entirely between your ears.
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Are you ready to test your limits, or do you need to prepare your mind and body for the challenges ahead? Explore our Navy SEALs Complete Guide to learn more about what it takes to wear the Trident, and connect with us to find the resources you need for a successful military career.
