Symptoms of polyneuritis
The symptoms of polyneuritis mainly include autonomic nerve dysfunction, motor disturbances, and sensory disturbances.
1. Autonomic Nerve Dysfunction
This can cause the skin at the extremities to become cyanotic, sweaty or anhidrotic, pale, and cold. It may also lead to abnormalities such as rough, brittle nails, or even ulceration.
2. Motor Disturbances
It causes symmetrical muscle weakness in the distal limbs, manifesting as mild paralysis or even complete paralysis. It may also result in hypotonia, with diminished or absent tendon reflexes. Additionally, some patients may develop wrist drop or foot drop. In later stages of the disease, muscle atrophy, limb contractures, and deformities may occur.
3. Sensory Disturbances
Sensory abnormalities may also occur in the distal parts of affected limbs, such as burning sensations, crawling sensations, tenderness, or prickling pain. There may also be symmetrical sensory loss or reduction in the distal limbs, typically distributed in a "glove-and-stocking" pattern.