---
title: Casualties Unknown Health Guide: Limbs, Blood and Heart
description: Limb damage, bleeding, heart problems, brain damage, infection and radiation, explained by the problem you have.
url: https://casualtieswiki.wiki/health/
---

Health

# Casualties Unknown health guides
The simulated body is the heart of this game. Open the page for the problem on your screen right now, and you will find what to do first, what to use, and how sure we are about it.

## Where to start
Open the health panel. Deal with bleeding first, then work down this list.

- [Bleeding and blood](https://casualtieswiki.wiki/health/bleeding-and-blood/)Yellow drop means treat it now

- [Limb damage](https://casualtieswiki.wiki/health/limb-damage/)Bandage before pulling shrapnel

- [Infection and radiation](https://casualtieswiki.wiki/health/infection-and-radiation/)Dirt speeds up infection

## Every Casualties Unknown injury guide

- [guide Limb damage How to fix shrapnel, dislocations and fractures, when to amputate and how prosthetics work. Bandage before pulling shrapnel Three prosthetic tiers in the full game Sleep heals muscle](https://casualtieswiki.wiki/health/limb-damage/)

- [guide Bleeding and blood How to bandage, which wound comes first, and how to treat internal bleeding and hemothorax. Yellow drop means treat it now Procoagulant helps many bleeds IV bags replace lost blood](https://casualtieswiki.wiki/health/bleeding-and-blood/)

- [guide Heart and stroke What causes strokes, fibrillation and cardiac arrest, and what actually treats them. 2% stroke chance per second in a crisis Fibrillation rises fast above 280 bpm Defibrillators often fail](https://casualtieswiki.wiki/health/heart-and-stroke/)

- [guide Brain damage What causes brain damage, what the symptoms mean and how to recover from it. Sound cannons are the main cause Reversed controls are a symptom Braingrow is the usual cure](https://casualtieswiki.wiki/health/brain-damage/)

- [guide Infection and radiation How infections start, how to clean and disinfect, how radiation builds up and how to treat it. Dirt speeds up infection Sterilized dressings last a long time You can overdose on anti-rad](https://casualtieswiki.wiki/health/infection-and-radiation/)

## Health questions players ask
How do you treat internal bleeding? A bandage cannot reach it. Players use L.R.D. serum or procoagulant, plus rest and blood replacement if needed. [Details →](https://casualtieswiki.wiki/health/bleeding-and-blood/)

How do you bandage a wound? Drag a dressing onto the limb in the health panel and circle it around the wound until the drop icon goes away. [Details →](https://casualtieswiki.wiki/health/bleeding-and-blood/)

How do you remove shrapnel? Bandage first, because pain makes your hands shake, then click Remove shrapnel and drag the pieces out. [Details →](https://casualtieswiki.wiki/health/limb-damage/)

What causes a stroke? Very high blood pressure, often from stress, stimulants or the sense of impending doom. A hypertensive crisis carries a 2% chance per second. [Details →](https://casualtieswiki.wiki/health/heart-and-stroke/)

How do you cure brain damage? Braingrow is the main treatment, and damage also heals slowly with rest. [Details →](https://casualtieswiki.wiki/health/brain-damage/)

How do you treat an infection? Apply a disinfectant to the infected limb and keep clean. Sterilized dressings last a long time. [Details →](https://casualtieswiki.wiki/health/infection-and-radiation/)

Can you lose a limb permanently? In the demo, yes. The full game adds three tiers of prosthetics. [Details →](https://casualtieswiki.wiki/health/limb-damage/)

Other sections: [Survival](https://casualtieswiki.wiki/survival/) · [Items](https://casualtieswiki.wiki/items/) · [Layers](https://casualtieswiki.wiki/layers/) · [Mods](https://casualtieswiki.wiki/mods/) · [Characters](https://casualtieswiki.wiki/characters/) · [Game info](https://casualtieswiki.wiki/game/) · [Updates](https://casualtieswiki.wiki/update/)