Distal Symmetric Polyneuropathy (DSPN)
It feels as if the areas covered by gloves and socks are always numb. Patients often experience symmetric stabbing pain, numbness, or a tingling sensation like ants crawling in both hands and feet, and the symptoms are usually more severe at night.
Proximal Neuropathy
Mainly manifested as severe pain in one thigh, which may be accompanied by muscle weakness and atrophy. In severe cases, it can even affect walking posture.
Focal Mononeuropathy
A sudden malfunction of a nerve in a specific area, which may include:
Sudden inability to lift the eyelid (ptosis caused by oculomotor nerve injury);
Crooked mouth with loss of facial expression (facial palsy caused by facial nerve injury);
Difficulty moving the eyeball (abducens nerve injury);
Numbness and pain on one side of the face (trigeminal nerve problem).Asymmetric Multifocal Neuropathy
Malfunctions of multiple nerves occur alternately. The patient may have numb fingers one day and stabbing pain on the instep the next, with pain in unfixed and asymmetric locations.
Polyradiculopathy
Damage to the lumbar nerve roots causes numbness and pain in the front of one thigh and the hip area. In severe cases, it may lead to difficulty lifting the leg.
Autonomic Neuropathy
This type affects the body’s automatic control systems, including the cardiovascular, digestive, urinary, thermoregulatory, and reproductive systems.Manifestations include:
Irregular heart rate (sudden fast or slow heartbeat);
Abdominal distension after meals, constipation;
Difficulty urinating or urinary incontinence;
Abnormal sweating (either excessive or insufficient);
Erectile dysfunction in men.