- Muscles become weak and wasted.
- Incoordination in muscles.
- Eyelids droop.
- The spine is curved.
- Joint contracture occurs.
- Difficulty walking.
- Breathing problems.
- Cardiomyopathy and arrhythmia occur in the heart.
- Muscle spasms occur.
- Mental abnormalities occur.
- Baldness on the forehead.
- Cataracts in the eyes.
- Genital atrophy.