1. The biggest possibility is that the long-term water supply is not appropriate, and too much water has damaged the root system of the plant, so that the plant can not really grow, the leaves have no nutritional supply, so they will fall off one after another, which is a better situation, if more serious, the whole plant may die.
2. It may be because the plant is placed in a dark environment for a long time, and the plant will lose its vitality if it can't get light for a long time.
3. This is also the case when you are exposed to strong sunlight in summer.
1. Need to change the pot for the plant in time, give the broken part to the pruning point, and then match it with fresh and nutritious substrate for its development.
2. It needs to be exposed to appropriate light, so that the plant can maintain good growth.
3. It needs to provide a suitable temperature, not too low or too high.
4. Reduce the application of water and fertilizer for a period of time, so that the plant can heal itself.