Muscle Weakness During Cold Weather

What Causes Muscle Weakness In Cold Weather?

Muscle weakness in cold weather can have various causes, just like most other symptoms.  Finding the true cause means ruling out or confirming each possibility – in other words, diagnosis.

Diagnosis is usually a complex process due to the sheer number of possible causes and related symptoms.  In order to diagnose muscle weakness in cold weather, we could:
  • Research the topic
  • Find a doctor with the time
  • Use a diagnostic computer system.
The process is the same, whichever method is used.

Step 1: List all Possible Causes

We begin by identifying the disease conditions which have "muscle weakness in cold weather" as a symptom.  Here are two possibilities:
  • Myasthenia Gravis
  • Multiple Sclerosis

Step 2: Build a Symptom Checklist

We then identify all possible symptoms and risk factors of each possible cause, and check the ones that apply:
occasional involuntary eye movement
low lymphocyte count
gradual decline in speaking ability
minor cold weather muscle spasms
numb/burning/tingling extremities
muscle cramps/twitching
increased emotional instability
hand tremors
inability to tell hot from cold
being blind or nearly blind
poor bodily coordination
incoherent speech
... and so on

Step 3: Rule Out or Confirm each Possible Cause

A differential diagnosis of your symptoms and risk factors finds the likely cause of muscle weakness in cold weather:
Cause Probability Status
Myasthenia Gravis 96% Confirm
Multiple Sclerosis 50% Possible
* This is a simple example to illustrate the process

Arriving at a Correct Diagnosis

The Analyst™ is our online diagnosis tool that learns all about you through a straightforward process of multi-level questioning, providing diagnosis at the end.

If you indicate problems caused by cold/damp weather, The Analyst™ will ask further questions including this one:
Do you experience increased muscle weakness in cold weather?
Possible responses:
→ Don't know
→ No
→ Yes, occasionally / slightly
→ Yes, regularly / definitely
→ Yes, frequently / severely
Based on your response to this question, which may indicate no cold weather muscle weakness, minor cold weather muscle weakness, cold weather muscle weakness or severe cold weather muscle weakness, The Analyst™ will consider possibilities such as:
Myasthenia Gravis
Very cold (or very hot) weather may increase weakness in myasthenia gravis patients.