Late-onset proximal muscle weakness
Lack of strength of the proximal musculature occurring late in the clinical course.
What is Late-onset proximal muscle weakness?
Late-onset proximal muscle weakness is a symptom that people may experience for many reasons. It can be related to infections, chronic conditions, injuries, medication effects, or other health changes. The presence of this symptom alone does not diagnose any condition.
If you have Late-onset proximal muscle weakness that is severe, persistent, or accompanied by other warning signs, contact a qualified healthcare provider.
Possible conditions associated with Late-onset proximal muscle weakness
The following conditions have been associated with Late-onset proximal muscle weakness. Only a health professional can determine the underlying cause.
Thyrotoxic periodic paralysis
Thyrotoxic periodic paralysis is a medical condition that may be associated with various symptoms and signs.
myofibrillar myopathy 1
A rare genetic skeletal muscle disease characterized by abnormal chimeric aggregates of desmin and other cytoskeletal pr...
myofibrillar myopathy 2
Any autosomal dominant distal myopathy in which the cause of the disease is a mutation in the CRYAB gene.
Related symptoms
When to seek medical care
Seek urgent care if Late-onset proximal muscle weakness is severe, sudden, or occurs with chest pain, difficulty breathing, confusion, severe weakness, or other serious symptoms.