The short version
- From 2000 to 2016, 204 US commercial fishermen died after falling overboard, and none of them was wearing a lifejacket[1].
- 59.3% of those falls were unwitnessed, and a man overboard alarm was reportedly used in only one event[1].
- In cold water a person has about 1 minute to control breathing and about 10 minutes of useful movement before the muscles fail[4].
- Recovery is not the end: lifting a person out of the water can trigger circum-rescue collapse, so they should be kept horizontal[5][6].
How many people die after going overboard?
| Dataset | Scope | Overboard deaths |
|---|---|---|
| CDC MMWR, 2018[1] | US commercial fishing, 2000 to 2016 | 204 deaths; 0 wearing a lifejacket |
| NIOSH[2] | US commercial fishing, 2000 to 2019 | 266 deaths, 30% of all fishing fatalities |
| ILO register, 2023[11] | 403 seafarer deaths, 51 countries | 91 persons overboard who disappeared at sea |
| ILO register, 2024[12] | 449 seafarer deaths, 66 countries | 36 persons overboard |
The fishing data shows the pattern most clearly: of 83 witnessed falls, 56 rescue attempts were made, and the 22 people recovered could not be resuscitated[1]. Speed and flotation decide the outcome long before medicine does.
Why people go over the side
| Cause[1] | Share of fatal falls |
|---|---|
| Losing balance | 48 (32.2%) |
| Tripping or slipping | 47 (31.5%) |
| Entangled in gear | 31 (20.8%) |
Most fishing deaths in this group happened with nobody watching, which is why NIOSH recommends a man overboard system that alerts the crew and a device with GPS that signals the person’s location[1][2]. For the full fishing picture, see commercial fishing deaths.
The cold water clock: 1 minute, 10 minutes, 1 hour
| Phase | When | What kills |
|---|---|---|
| Cold shock | First minute[4] | Gasping and rapid breathing; aspiration of water[3][5] |
| Swim failure | About 10 minutes of useful movement[4] | Arms and legs cool and stop working at near-normal core temperature[5] |
| Hypothermia | About 1 hour to unconsciousness[4] | Core temperature below 95 F (35 C)[3] |
| Circum-rescue collapse | During and after extraction[5] | Sudden loss of water pressure on the body[5] |
The National Weather Service adds that core temperature can keep falling after the person is out of the water[3]. The detail on survival in cold water is in cold water immersion survival.
Getting them back aboard
- Alarm and point: shout, keep one crew member pointing at the person, press the MOB button.
- Flotation in the water first; NIOSH notes a rescue sling or similar device is more effective than a life ring for bringing a crew member back aboard[2].
- Aim for recovery inside 11 minutes in cold water, the target the RYA sets[6].
- Lift horizontally, not upright, to limit the effects of hydrostatic squeeze[6][5].
A conscious survivor is still a patient
The RYA warns that people recovered conscious remain at risk of shock, hypothermia and secondary drowning, and should be reviewed by a medical facility[6]. Drowning is defined as breathing impairment from submersion or immersion, not only death[8]. Get radio medical advice and plan a medevac for anyone who swallowed water, lost consciousness or is breathing badly.
If the person is not breathing
The 2024 American Heart Association update says resuscitation after drowning must focus on restoring breathing as much as circulation, and CPR continues once the rescuer and casualty are somewhere safe such as a boat[7]. In practice that means rescue breaths come first, then CPR[7].
Fishing crews need trained hands for this: see 46 CFR 28.210 first aid and CPR requirements and AED requirements on commercial vessels.
What the rules require
| Rule | Requirement |
|---|---|
| 46 CFR 28.270[9] | Fishing vessel drills and instruction at least once each month, including recovering an individual from the water |
| SOLAS III/17-1[10] | Ship-specific plans and procedures for recovering persons from the water, in force 1 July 2014 |
| NIOSH guidance[2] | Run man overboard drills monthly |
The drill details for fishing vessels are in fishing vessel drill requirements.
Discovery Health MD writes the medical half of the man overboard plan: maritime medical consulting for the recovery, CPR and medevac protocol, and ship medical chest management for the oxygen, warming and first aid kit behind it. Book a physician review of your man overboard procedure.
Related: immersion foot (trench foot).
Common questions
What is the emergency procedure for a man overboard?
Raise the alarm, keep a spotter pointing at the person, get flotation to them, recover them as fast as possible and lift them horizontally[2][6].
How long can a person survive in cold water after falling overboard?
About 1 minute to control breathing, about 10 minutes of useful movement and about 1 hour before hypothermia causes unconsciousness[4].
Why do so many fishermen die after falling overboard?
None of the 204 who died from 2000 to 2016 wore a lifejacket, and 59.3% of the falls were not witnessed[1].
What is circum-rescue collapse?
Collapse during or after extraction from the water, driven mainly by the sudden loss of water pressure on the body[5].
Should a recovered person see a doctor?
Yes. Even conscious survivors are at risk of shock, hypothermia and secondary drowning[6].
How often must fishing crews drill man overboard recovery?
46 CFR 28.270 requires drills at least once each month, and recovering an individual from the water is one of the listed contingencies[9].
Is a life ring enough to recover someone?
NIOSH says a rescue sling or similar device is more effective than a life ring for bringing a crew member back aboard[2].
