Muscular dystrophy is a group of inherited disorders that cause
Inherited myopathy, MD
Muscular dystrophies, or MD, are a group of inherited conditions. This means they are passed down through families. They may occur in childhood or adulthood. There are many different types of muscular dystrophy. They include:
Becker muscular dystrophy Duchenne muscular dystrophy
- Emery-Dreifuss muscular dystrophy
Facioscapulohumeral muscular dystrophy
- Limb-girdle muscular dystrophy
- Oculopharyngeal muscular dystrophy
Muscular dystrophy can affect adults, but the more severe forms tend to occur in early childhood.
Symptoms vary among the different types of muscular dystrophy. All of the muscles may be affected. Or, only specific groups of muscles may be affected, such as those around the pelvis, shoulder, or face. The muscle weakness slowly gets worse and symptoms can include:
- Delayed development of muscle motor skills
- Difficulty using one or more muscle groups
Drooling Eyelid drooping( ptosis)
- Frequent falls
- Loss of strength in a muscle or group of muscles as an adult
- Loss in muscle size
Problems walking(delayed walking)
Intellectual disability is present in some types of muscular dystrophy.
Exams and Tests
A physical examination and your medical history will help the doctor determine the type of muscular dystrophy. Specific muscle groups are affected by different types of muscular dystrophy.
The doctor’s exam may show:
Abnormally curved spine (
Joint contractures (
clubfoot, clawhand, or others)
Low muscle tone (
Some types of muscular dystrophy involve the heart muscle, causing
Often, there is a loss of muscle mass (
Other tests may include:
- Heart testing – electrocardiography (ECG)
Nerve testing –
nerve conductionand electromyography ( EMG)
Urine and blood testing – including
- Genetic testing for some forms of muscular dystrophy
There are no known cures for the various muscular dystrophies. The goal of treatment is to control symptoms.
Corticosteroids taken by mouth are sometimes prescribed to children with certain muscular dystrophies to keep them walking for as long as possible.
The person should be as active as possible. No activity at all (such as bedrest) can make the disease worse.
You can ease the stress of illness by joining a
The severity of disability depends on the type of muscular dystrophy. All types of muscular dystrophy slowly get worse, but how fast this happens varies widely.
Some types of muscular dystrophy, such as Duchenne muscular dystrophy in boys, are deadly. Other types cause little disability and people have a normal lifespan.
When to Contact a Medical Professional
Call your health care provider if:
You have symptoms of muscular dystrophy.
You have a personal or family history of muscular dystrophy and you are planning to have children.
Genetic counseling is advised when there is a family history of muscular dystrophy. Women may have no symptoms, but still carry the gene for the disorder. Duchenne muscular dystrophy can be detected with about 95% accuracy by genetic studies done during pregnancy.