The Post-Concussion Symptom Scale (PCSS): How to Track Your Recovery

Written by Dr. Jon MacKay, PharmD, BCACP. Educational content — not a diagnostic tool or a substitute for medical evaluation.

One of the hardest parts of concussion recovery is that you can't see it. There's no cast, no stitches — just a shifting mix of symptoms and the question, "Am I actually getting better?" The Post-Concussion Symptom Scale (PCSS) is the tool clinicians use to make that question measurable.

What the PCSS is

The PCSS is a standardized checklist of 22 symptoms commonly reported after concussion. You rate each one from 0 (none) to 6 (severe), giving a total score from 0 to 132. It's used in clinical settings and athletic programs worldwide, including as part of sport-concussion assessment protocols.

The 22 symptoms it tracks

The scale groups naturally into four clusters:

• Physical: headache, nausea, vomiting, balance problems, dizziness, visual problems, fatigue, sensitivity to light, sensitivity to noise, numbness/tingling
• Cognitive: feeling mentally "foggy," feeling slowed down, difficulty concentrating, difficulty remembering
• Emotional: irritability, sadness, nervousness, feeling more emotional
• Sleep: drowsiness, sleeping less than usual, sleeping more than usual, trouble falling asleep

How to use it well

1. Rate honestly, not hopefully. The scale only works if a 4 is a 4.
2. Same time, same conditions. Symptoms fluctuate through the day — check in at a consistent time so you're comparing like with like.
3. Track the trend, not the day. A single bad day means little; a rising 7-day trend is information worth bringing to your provider.
4. Note your triggers. Score spikes after screen time, exercise, or a poor night's sleep tell you (and your provider) something useful about your current tolerance.
5. Bring the data to appointments. "My total went from 46 to 21 in three weeks, but concentration is stuck at 4" is a far more useful sentence than "I think I'm a bit better."

When numbers mean "call your provider"

Tracking never replaces judgment. Contact a medical professional promptly if symptoms worsen instead of gradually improving, if new symptoms appear days after the injury, or if you experience red-flag signs like repeated vomiting, worsening headache, increasing confusion, slurred speech, or weakness — those warrant urgent evaluation.

Tracking it without the paperwork

You can absolutely run the PCSS on paper. If you'd rather not, the free ConcussionCare+ recovery app includes structured symptom check-ins (clarity, fatigue, headaches, mood, sleep) alongside simple cognitive tasks — reaction time, working memory, and trail-making — so you can see symptoms and performance trending on one dashboard. It's free with every order, works without an account, and your data stays private by default.

Recovery you can see is recovery you can manage — with your care team, one honest check-in at a time.

If symptoms are worsening or you're unsure, seek medical care. This article is educational and does not replace evaluation by a qualified professional.