If you have recently been made aware that SMA runs in your family, or have noticed symptoms that might indicate SMA in you or your child, speak to your doctor for more information about testing. Symptoms to keep an eye out for include: 

• Muscle weakness and/or low muscle tone in the arms, legs, torso, shoulders, and/or hips — children may seem ‘floppy’  

• Poor head control  

• Difficulty breathing, swallowing or sucking  

• Weak cry or cough  

• Cannot sit or roll independently (0–6 months)  

• Cannot stand or walk (7–18 months) or loss of the ability to walk (18+ months)  

• Scoliosis (a curved spine)  

• Tremors or twitching