Blood Sickness is one of many Afflictions you can get in We Need To Go Deeper, by getting attacked by certain venomous creatures. Blood Sickness is a very dangerous affliction, and will make the afflicted player much more frail and vulnerable, endangering their lives in situations where they are taking constant damage.
Effects
When you contract the Blood Sickness, you will instantly lose 25% of your max health, and cannot be healed past that, which severely reduces the damage you can endure and allows enemies to kill or floods to kill you much faster, which will in turn further reduce your maximum health due to the death penalty (unless you were holding a Rose), further hindering you.
Sources
Here are the current sources you can contract Blood Sickness from:
- Being bit by a Baby Lamprey or a Sentient Lamprey in the Dark Depths (70% chance)
- Being hit by a Futurebot, Giant Bee or a Pain Clown brought by the Time Traveller (70% chance)
- Being hit by a Nerve Beast's tentacle in the Mechanical Abyss in Awakened Mode (70% chance)