# Leader / Region 分布不均衡
![left](./student-guide/diagram/25-Leader-Region-phenomenon-01-01.png)
![left](./student-guide/diagram/25-Leader-Region-phenomenon-01-02.png)
-------------------------------------------------------------
Leader 以及 Region 分布不均衡，一般情况下是指 Store leader score & Store Region score 、Store leader size & Store Region size 以及 Store leader count & Store Region count 在各个 TiKV 中出现较大的差异，示例如下：