Question
Weakness in limbs; onset from childhood; caused by genetic disease;
Answer
Myasthenia gravis is a chronic disease caused by neural muscle transmission disorders. Clinical features include easily fatigable affected skeletal muscles, which can partially recover after rest and treatment with anticholinesterase drugs. The occurrence of this disease is related to genetic factors, and it can affect individuals of any age, but it is most common between the ages of 10 to 35, with some cases occurring in middle-aged and older individuals.