When a wound is described as being "well along the healing process" but then develops a dark purple color, it can be indicative of several factors:
1. **Bruising or Hematoma:** As a wound heals, it may experience some bruising or localized bleeding beneath the skin, which can result in a dark purple appearance. This can happen if blood vessels are damaged during the injury and blood accumulates in the surrounding tissue.
2. **Inflammation:**