Lou Gehrig’s disease is the common name for amyotrophic lateral sclerosis (ALS), a progressive neurological disease that damages the nerve cells responsible for controlling voluntary muscles. Early symptoms can vary widely, and many symptoms can also be caused by other, more common conditions.
Possible early symptoms of ALS
- Muscle weakness
- Often begins in one hand, arm, leg, or the muscles involved in speech and swallowing.
- Examples: dropping objects, difficulty buttoning clothes, tripping more often, or trouble lifting a foot.
- Muscle twitching (fasciculations)
- Small, involuntary muscle twitches may occur, often in the arms, legs, shoulders, or tongue.
- Muscle cramps and stiffness
- Cramping, tightness, or increased muscle tone may appear before more obvious weakness.
- Changes in speech
- Slurred speech, quieter voice, or difficulty pronouncing words can occur when ALS affects speech muscles.
- Difficulty swallowing
- Trouble chewing, swallowing, or managing saliva may be an early sign in some people.
- Loss of coordination or balance
- Increased clumsiness, falls, or difficulty with fine motor tasks may occur.
- Fatigue and reduced endurance
- Some people notice unusual tiredness or that activities require more effort.
Symptoms that are usually not typical early ALS signs
- Memory loss or dementia-like symptoms (though rare cognitive and behavioral changes can occur in some ALS cases)
- Numbness or tingling as a main symptom
- Significant pain as the first symptom
When to seek medical evaluation
A person should consider seeing a doctor—especially a neurologist—if they have progressive, unexplained muscle weakness, repeated falls, worsening speech/swallowing problems, or muscle wasting. ALS diagnosis requires a medical evaluation because many other conditions can mimic parts of it.
If you’re asking because of a specific symptom (for example hand weakness, twitching, cramps, speech changes, or trouble walking), tell me the symptom, when it started, and whether it is getting worse.
