Status effects come in both good and bad forms. Good status effects are almost always in the form of a buff. These buffs can make you more resistant to certain types of damage, have utility effects, extend the duration of other effects, and have you dealing out more damage or a combination of those previously listed. However, there are also negative effects.
Baldur's Gate 3: Flesh Rot Status Explained
Flesh Rot in Baldur's Gate 3 is a negative effect, and here's all you need to know about it.