An aloe plant turns brown mainly due to a few common reasons: overwatering or underwatering, too much direct sunlight causing sunburn, excess fertilizer causing root damage, poor soil drainage or lack of drainage holes, pest infestations, and environmental stress such as cold temperatures. Brown tips and discoloration often show dehydration or sun stress, while soft, mushy brown areas usually indicate overwatering or root rot. Proper watering—allowing soil to dry completely between waterings, good light conditions (bright but not scorching sun), and well-draining soil are key to preventing browning. Excess fertilizer should be avoided, and pests or diseases need to be managed promptly if identified. In summary, browning can mean either too much or too little water, too much sun, poor soil drainage, or nutrient overload, so inspecting the plant’s environment and care routine closely can pinpoint the exact cause.