What are the symptoms of cervical spondylotic myelopathy?

The symptoms of cervical spondylotic myelopathy mainly include the following aspects: 1. Lower limb symptoms: In the early stage, numbness and heaviness in one or both lower limbs may occur. As the disease progresses, difficulty walking gradually develops, eventually manifesting as unsteady gait, inability to run, or a sensation of walking on cotton. 2. Upper limb symptoms: Subsequently, numbness, pain, weakness, and clumsiness in one or both upper limbs may appear, significantly affecting fine motor skills such as writing or using chopsticks. 3. Trunk sensory abnormalities: Patients may experience a "tight band" sensation around the chest or abdomen, or in both lower limbs, often accompanied by burning, coldness, or tingling (like ants crawling). 4. Bladder and bowel dysfunction: As the condition worsens, urinary disturbances such as frequency, urgency, incomplete voiding, incontinence, or urinary retention may develop, along with constipation.