Bodies recovered from water
- Finding
A body in water did not always drown: water changes the skin and decomposition and causes injuries after death.
What it is
With a body recovered from water there are five questions: who it is, whether the person was alive on entering the water, what they died of, how it happened and how long they were submerged. Water causes its own changes: maceration of the skin of the hands and feet, which in time comes away like a glove, gooseflesh, rapid cooling and a decomposition that depends heavily on the water temperature. The body usually sinks and floats again when putrefaction gases form, after a very variable time. It floats face down with the head hanging lowest, so the face decomposes first. The bottom, rocks, boat propellers and animals cause injuries after death that must not be mistaken for an assault. The diagnosis of drowning has its own page.
How to tell it apart
- Versus injuries in life: postmortem ones show no vital reaction, follow the prominent parts and lack the pattern of a weapon.
- Versus a homicide with the body thrown into water: look for injuries with vital reaction, bindings, weights or signs of strangulation.
- Time in water is estimated only roughly from maceration and decomposition; it depends mostly on temperature and no sign fixes it precisely.
- Moving between water and air (a body stranded on a bank) changes the pace of decomposition.
How to recognise it
- Maceration: white, wrinkled, thickened skin on palms and soles, progressing to skin slippage.
- Gooseflesh: common in cold water, non-specific.
- Drag injuries on the prominent parts that touch the bottom with the body face down.
- Propeller injuries: deep, parallel, curved cuts; amputations.
- In prolonged immersion: adipocere and loss of soft tissue.
How it forms
- Water absorbed by the horny layer of the skin causes maceration; cold water slows it and warm water speeds it up.
- Putrefaction gases make the body float; in cold water they form later and the body may take a long time to surface.
- Currents drag the body against the bottom and obstacles, causing injuries without vital reaction.
Next step: what to do and document
- Record the place, time and manner of recovery, the clothing, objects, any bindings or weights and the water temperature.
- Photograph the body on recovery and before it dries, because some injuries change appearance.
- Keep the skin shed from the hands for fingerprint identification and request dental or DNA identification if needed.
- Perform a full autopsy with toxicology and, if diatoms are studied, take a water sample from the site as a control.
- Describe each injury with its vital reaction or lack of it, and explain in the report which occurred after death.
Common mistakes
- Attributing drag, rock, propeller or animal injuries to an assault.
- Diagnosing drowning only because the body was in water.
- Using rigid tables to fix the time of submersion.
- Throwing away the skin shed from the hands, which can be used for fingerprints.
Test yourself
Think of the answer, then tap the question to see it.
What does maceration of the skin of the hands and feet show in a body recovered from water?
How long it was in the water, not the cause of death; it does not prove the person drowned.
Why is the face usually more decomposed in a body that has floated?
Because the body floats face down with the head lowest, blood pools there and decomposition advances sooner.
Where are drag injuries found on a body in water?
On the prominent parts that touch the bottom with the body face down: forehead, backs of the hands, knees and toes.
Which drowning findings best resist decomposition?
Fluid in the sphenoid sinus, petrous haemorrhage and fluid in the stomach and duodenum.
Connections
Educational content on forensic and legal medicine; not legal advice and no substitute for the technical guides of Colombia's National Institute of Legal Medicine and Forensic Sciences. Laws change: each page links the official text and says when it was last checked. For a real case, follow the guide in force and ask the competent authority.
Sources: Immersion Deaths in Seoul: Implications of Decomposition for Postmortem Diagnosis of Drowning (Journal of Korean Medical Science, PubMed Central, 2026); Decomposition dynamics across sequential environments: subaerial and freshwater aquatic transitions (International Journal of Legal Medicine, PubMed Central, 2026); Motorboat propeller-related head injuries: A systematic literature review with a case illustration (Surgical Neurology International, PubMed Central, 2023); Diatom Analysis in Drowning: A Critical Review of Reliability, Contamination, and Medico-Legal Interpretation (Cureus, PubMed Central, 2026).
Spotted a mistake?We are always improving for the community. Tell us what is wrong and our team will review it.Report a mistake
Representative model, for educational purposes only.