Returning to running is emotionally difficult because memory recovers faster than fitness. You remember the old distance, old pace, and old identity while the present body is asking for a smaller beginning.
Get the right boundary first
After injury, surgery, serious illness, pregnancy, or persistent symptoms, use guidance from an appropriate qualified professional. A generic article cannot diagnose readiness or replace an individual return plan.
Separate four different things
Healing, aerobic fitness, tissue tolerance, and confidence do not always return together. Feeling energetic does not automatically mean the previously affected area is ready for a large jump in impact.
Use run-walk without apology
Short running intervals with planned walking make effort and impact easier to control. Finish with information about how the body responded during the session and over the following day.
Do not repay missed mileage
There is no training debt. Trying to catch up turns the comeback into another interruption. Build from the work the present body has completed, not from the calendar you once imagined.
A successful comeback run is one that leaves a sensible next step.
Track symptoms and patterns, progress one variable at a time, and treat patience as a performance skill rather than an absence of ambition.