Foot Drop in Multiple Sclerosis (MS): Early Signs, Causes & Treatment Options

Learn how foot drop can be an early symptom of multiple sclerosis (MS)

Foot drop is a walking problem that can occur in people with multiple sclerosis (MS) and may sometimes be an early sign of MS. It causes weakness or paralysis in the muscles that lift the foot towards the shin, making walking difficult and increasing the risk of falls. Early signs include trouble lifting the toes and changes in walking style. While foot drop is not a medical emergency, it usually indicates an underlying neurological disorder or nerve issue.

When foot drop occurs as a symptom of MS, it is due to lower limb paralysis or weakness caused by upper motor neuron conditions like MS and stroke. It is characterized by difficulty lifting the toes when walking, which can be caused by fatigue, muscle weakness, and/or spasticity. This makes walking tiring and difficult, increasing the likelihood of trips, loss of balance, and falls.

Identifying early signs of foot drop in MS can be done by paying attention to certain signs and symptoms, including the following:

  • Some early signs may include feeling that one shoe is looser than the other, making it difficult or uncomfortable to lift the foot.
  • People with foot drop may walk with a higher step than usual or experience numbness or weakness in one foot compared to the other.
  • The condition affects the nerves controlling the muscles that flex the foot towards the shin, leading to weakness or paralysis in those muscles. This can make ankles and knees unsteady while standing, cause the foot to drag, and result in an uneven step while walking.

When foot drop occurs as a symptom of MS, there are various actions and treatments that can help manage it, including:

  • Assistive devices: People often need some form of assistive device to support their walking. The most prescribed device is an ankle-foot orthosis (AFO), which is a brace that helps maintain proper foot position while walking.
  • Physical therapy: Engaging in physical therapy can help strengthen muscles and improve gait. Exercise therapy focuses on strengthening the affected muscles and maintaining joint motion.
  • Functional Electrical Stimulation (FES): FES is a treatment option that has been developed in recent years. It involves using electrical stimulation to support walking after an upper motor neuron lesion.

It's important to note that these treatments may not completely restore a normal gait, but they can significantly reduce symptoms and make walking easier for individuals with foot drop.

If someone is trying to identify foot drop as an early sign or symptom of MS, it is recommended that they consult their doctor for further evaluation and guidance on appropriate management strategies. Medical help should be sought if foot drop significantly affects daily activities or if there are concerns about falls or loss of balance. A healthcare professional can provide personalized advice based on an individual's specific condition and needs.

Remember, always consult your doctor before trying any home remedies or over-the-counter medications for managing foot drop as a symptom of MS.