After I started lifting weights, I noticed the arm in which my lymph nodes were removed was much larger than the other. Should I be concerned?

A noticeable difference in arm size after lymph node removal could indicate lymphatic fluid buildup. The lymphatic system helps manage fluid and supports circulation. Without sufficient lymphatic drainage, fluid can accumulate. It's important to consult a healthcare provider to assess the situation and ensure proper management. Consistent exercise can help maintain fluid flow and reduce swelling.