Elephant's foot

The first layers bulge outward, wider than the rest of the print.

Likely causes, most likely first

1. First-layer Z too low (over-squished)
2. Bed temperature too high
3. Not enough cooling on the lowest layers

Fixes to try

• Raise the first-layer Z slightly / re-level
• Lower the bed temperature a few degrees
• Enable elephant-foot compensation in the slicer
• Add cooling on the initial layers

Other print defects