Stem cells play an important role in helping our bodies grow and fix themselves. But the process they go through can be tricky. Here are some challenges they face:

1. Cell Cycle Regulation: Sometimes, stem cells don’t divide properly. This can lead to uncontrolled growth, which might cause tumors.

2. Differentiation: Stem cells need to change into the right kind of cells. However, things in their environment can mess this up.

3. Limited Availability: It can be hard to get pluripotent stem cells. There are also ethical and practical issues around this.

Possible Solutions:

• New gene editing technologies might help keep the cell cycle in check.
• Improving how we grow stem cells could lead to better results when they differentiate.
• We should create clear guidelines for stem cell research to ensure we use them responsibly.