Duchenne muscular dystrophy is a genetic condition that causes progressive muscle weakness, usually beginning in early childhood. It primarily affects boys and results from changes in the DMD gene, which is responsible for producing dystrophin, a protein that helps protect muscle fibers. Symptoms may include difficulty running.
Duchenne muscular dystrophy (DMD) is a progressive genetic neuromuscular disorder characterized by ongoing muscle damage and weakness. It most commonly affects boys because the DMD gene is located on the X chromosome, although females can sometimes have symptoms. Early signs may become noticeable when a child has difficulty walking, running, jumping, climbing stairs, or rising from the floor. The rate of progression varies, so care is generally individualized according to symptoms, age, mobility, and other health needs.
Muscle weakness in DMD often begins in the muscles around the hips, pelvis, thighs, and shoulders. Children may develop a distinctive way of walking or use their hands to push themselves up when getting off the floor. Calf muscles can appear enlarged even though the muscles themselves are weak. Over time, weakness can affect mobility and other body systems.
Common symptoms and changes may include:
Progression differs between individuals. Regular evaluation by healthcare professionals can help identify changes early and adjust supportive care.
There is currently no cure for DMD, but comprehensive care can help manage complications and preserve function for as long as possible. Treatment commonly involves several medical specialties because DMD can affect muscles, the heart, lungs, bones, mobility, and other aspects of health. Corticosteroids may be used to help preserve muscle strength and delay some aspects of disease progression, while certain newer therapies may be appropriate for specific genetic variants.
Living with DMD can involve changes in mobility and daily routines, but appropriate multidisciplinary care can support participation and quality of life. Families and caregivers may also benefit from practical, educational, and emotional support.
Overall, Duchenne muscular dystrophy is a lifelong condition requiring ongoing monitoring and coordinated care. Recognizing symptoms early, maintaining appropriate physical function, monitoring heart and respiratory health, and addressing individual daily needs can help manage the condition. Advances in genetic and medical research continue to expand treatment options for some individuals with specific DMD mutations.