---
title: Casualties Unknown Internal Bleeding and Blood Loss Guide
description: How to bandage, which wound comes first, and how to treat internal bleeding and hemothorax.
url: https://casualtieswiki.wiki/health/bleeding-and-blood/
---

Health

# Casualties Unknown bleeding and blood guide

_[Image: The bandage minigame, with a dressing being dragged around a wound and a health panel showing blood loss in red]_

_The dressing minigame. Drag the bandage around the limb until the blood drop goes away. Official Steam screenshot, © Orsoniks / Oro Interactive._

**Short answer:** to stop bleeding in Casualties Unknown, drag a dressing onto the bleeding limb in the health panel and wrap it until the drop icon goes. Treat the worst wound first, especially a **yellow** drop. Internal bleeding needs medicine rather than a bandage. Always stop bleeding before anything else. confirmed

The store page sums up the system: “stabilize blood loss before losing consciousness”. confirmed Your blood volume is shown in litres in the health panel, with a rate of loss per minute. Official screenshots show a readout like 4.91 L with 0.21 L/m being lost. confirmed

## How do you bandage in Casualties Unknown?

- Open the health panel. Limbs that are bleeding show teardrop symbols.

- Drag a dressing onto the affected limb.

- In the minigame, click and hold the dressing and circle it around the limb until the teardrop disappears. confirmed

You do not need to use a whole bandage on a single wound, as the on-screen tip in the minigame says. confirmed

**Making your first dressing:** three foliage make one canvas, a canvas makes a ripped dressing, and two ripped dressings combine into a full dressing. confirmed Dressings also stack together in your inventory to save space. confirmed

## Which wound should you treat first?

Forum advice is blunt: stop the bleeding first, because you cannot fix anything without blood. reported When several limbs are bleeding, these guidelines come from a popular guide. confirmed

| What you see | What it means | What to do |
| --- | --- | --- |
| Yellow blood icon | Will bleed for a long time | Treat it now |
| Bandaged icon over blood | Being handled | Move on to the next wound |
| Small white droplet | Nearly stopped | Usually leave it |

Alternating between wounds with dressings stops several bleeds faster than finishing one at a time. confirmed Bigger wounds or low-tier bandages may need more wrapping before the icon stays bandaged. confirmed

For injuries all over the body, like falling into a barbed fence, medicine that thickens your blood such as procoagulant stops bleeding across all limbs at once, rather than one by one. confirmed

## How do you treat internal bleeding in Casualties Unknown?

A bandage cannot reach it. You will see an internal bleed moodle, and since 6.0 it changes with severity. confirmed What players use, based on recordings and forum tips: reported

- **L.R.D. serum** or **procoagulant**, often both. See [L.R.D. and Braingrow](https://casualtieswiki.wiki/items/lrd-braingrow-mindwipe/).

- **Rest and low activity** while it clears.

- **Blood replacement** if your volume has dropped far.

Low muscle health on the abdomen can cause internal bleeding by itself, per the 7.0 notes. confirmed Sources in the world include landmines, turrets and sound cannons. confirmed

## What is hemothorax?

Blood in the chest. In 7.0, hemothorax went back to lowering your maximum oxygen, so you may start suffocating even with a working heart. confirmed A **chest drain** treats it, and in recordings players craft or loot one specifically for this. confirmed

## How do you replace lost blood?

IV bags are the standard tool. They hold twice what a canteen holds, weigh less, and let you inject blood or saline through the health menu. confirmed They are made from flexiglass plastic and a scrap tube, so a drop pod is a good place to craft one. confirmed

Blood volume also affects your mood, although this was reduced in 6.0, and blood above 5 L no longer affects it at all. confirmed Injecting miscellaneous liquids slightly thins your blood, and procoagulant thickens it. confirmed

| Item | Use | Status |
| --- | --- | --- |
| Dressings | External bleeds | confirmed |
| Sterilized dressing | Bleeding plus disinfecting | confirmed |
| Procoagulant | Many bleeds at once | confirmed |
| Clotting mush | Crafted bleed treatment, buffed in 7.0 | confirmed |
| IV bag | Inject blood or saline | confirmed |
| Chest drain | Hemothorax | reported |

## What happens when you run out of blood?

Lowered blood volume makes you weak and affects consciousness, and in 6.0 moodles were added for each level of bleeding. confirmed Severe loss, cardiac problems and passing out chain together quickly, so the [heart guide](https://casualtieswiki.wiki/health/heart-and-stroke/) is the next thing to read if you are stable.

If you are out of supplies, resting is sometimes all you can do. One tip: as long as a wound is not yellow, you can sometimes leave it alone unless you are really low on blood. confirmed

## How can you reduce bleeding in Casualties Unknown?

Avoid the sources. Most early bleeding comes from falls, glass and shade crawler bites. Use ragdoll sparingly near edges. Break glass shards before walking across them. Bring at least a few dressings to every layer, and craft them from foliage on the move, since the recipe needs nothing rare.

Watch for infection afterwards: an open wound with low skin health can get infected, as covered in [infection and radiation](https://casualtieswiki.wiki/health/infection-and-radiation/).

## Sources
Last checked 9 November 2026. Marks: confirmed = official notes, in-game text or a recording of the game; reported = two or more players; unverified = one source.

- [Beginners Guide: Injury and Treatment by Cain](https://www.youtube.com/watch?v=Cc8MFqX1gzE&t=81s) · dressings

- [30 Things Everyone Should Know by BluePawClaw](https://www.youtube.com/watch?v=HVF7rFHGwpY&t=269s) · wound icons

- [In-Depth Guide: Traps and Hazards by Cameron Kane](https://www.youtube.com/watch?v=kkH9emOCeNM&t=367s) · procoagulant

- [Tricks I Wish I Knew Sooner by BluePawClaw](https://www.youtube.com/watch?v=BLuLBHlRjIQ&t=271s) · IV bags

- [v6.0 Patch Notes, Steam](https://steamstore-a.akamaihd.net/news/externalpost/steam_community_announcements/1830163047266090)

- [7.0 Demo Update notes, Steam](https://steamstore-a.akamaihd.net/news/externalpost/steam_community_announcements/1834602721186794)

- [Casualties: Unknown on Steam](https://store.steampowered.com/app/4576490/) · screenshots of blood readouts

- [Steam forum: Splatter your game knowledge here!](https://steamcommunity.com/app/4576490/discussions/0/801219948950225874/) · player tips

## More in Health

- [Limb damage How to fix shrapnel, dislocations and fractures, when to amputate and how prosthetics work.](https://casualtieswiki.wiki/health/limb-damage/)

- [Heart and stroke What causes strokes, fibrillation and cardiac arrest, and what actually treats them.](https://casualtieswiki.wiki/health/heart-and-stroke/)

- [Brain damage What causes brain damage, what the symptoms mean and how to recover from it.](https://casualtieswiki.wiki/health/brain-damage/)

- [Infection and radiation How infections start, how to clean and disinfect, how radiation builds up and how to treat it.](https://casualtieswiki.wiki/health/infection-and-radiation/)