What are harmful traits to a cactus?

Harmful traits to a cactus include overwatering, which can lead to root rot, and poor drainage, causing excess moisture retention. Additionally, exposure to extreme temperatures, either too cold or too hot, can stress the plant. Pests like mealybugs and scale insects can also damage cacti by feeding on their sap, weakening the plant over time. Lastly, insufficient light can result in etiolation, where the cactus becomes elongated and weak.