Symptoms of spinal AVM can differ from person to person. Symptoms depend on where the AVM is found and how severe it is. Some people may not notice symptoms for many years, if at all. Others may experience symptoms that are debilitating or life-threatening. AVM AVM Symptoms usually develop when people are in their 20s, although almost 20% of people diagnosed with spinal AVM are under the age of 16. AVM Symptoms may start suddenly or slowly. Symptoms usually include: 
Problems with walking or climbing stairs
Numbness, tingling or sudden pain in the legs
Weakness on one or both sides of the body
 As the condition gets worse, you may have more symptoms including: 
Sudden, severe back pain
Lack of feeling in the legs
Difficulty urinating or having bowel movements
Headache
Stiff neck
Sensitivity to light
