Spinal Muscular Atrophy (SMA) is a genetic disease that affects nerve cells in the spinal cord. These nerve cells, called motor neurons, are responsible for controlling muscle movements. In SMA, these neurons are damaged, leading to progressive muscle weakness and ultimately the loss of muscle function.

SMA is typically categorized into different types, and one of them is Type 2. SMA Type 2 is known for symptoms emerging at a later stage compared to some other types, usually between 6 and 18 months of age. Children with SMA Type 2 may have difficulty sitting and standing, and some may require assistance with walking. They may also experience respiratory and swallowing issues.

In terms of life expectancy, the severity of SMA can vary significantly. Advances in treatment and care have significantly increased the life expectancy of individuals with SMA. Some people with SMA Type 2 can reach a normal lifespan, especially with advanced medical care and support. However, the prognosis of SMA can vary from person to person, and it is important to discuss individual cases with healthcare professionals for specific information.

Spinal Muscular Atrophy (SMA) Type 2 is characterized by specific symptoms arising from affected motor neurons in the spinal cord. Here are some prominent symptoms of SMA Type 2:

• Muscle Weakness: Children with SMA Type 2 experience progressive muscle weakness, particularly in the legs and hips. This can impact their ability to stand and walk.
• Motor Development Milestones: Delays in achieving motor development milestones, such as sitting and standing. Some children may require assistance to sit or support to stand.
• Respiratory Issues: SMA Type 2 can lead to respiratory problems, including difficulty in taking deep breaths and respiratory weakness. In some cases, respiratory support may be necessary.
• Swallowing Difficulties: Challenges in swallowing can lead to nutrition and weight issues.
• Movement Restrictions: As the disease progresses, movement restrictions may increase, and some children may become dependent on a wheelchair for mobility.
• Weight Loss: Nutrition and chewing difficulties can result in weight loss and challenges in maintaining a healthy body weight.
• Scoliosis: Some children with SMA Type 2 may develop scoliosis (sideways curvature of the spine).