Hemiplegia: Causes, Symptoms, and Treatment
Medically reviewed by Harsha Moole, MD, Internal Medicine. Last reviewed: October 23, 2026.
What kind of doctor treats Hemiplegia?
A neurologist, a doctor who treats brain and nerve problems, usually guides care for hemiplegia. A physiatrist, a rehabilitation doctor, and therapists help people regain skills. The right team depends on the cause, such as a stroke. A direct primary care or concierge doctor can be a first stop for an evaluation and can refer you to a specialist when needed.
What is hemiplegia?
Hemiplegia is paralysis on one side of the body. Paralysis is the loss of muscle function in part of your body. It can be complete or partial. It happens when something goes wrong with the way messages pass between your brain and your muscles.
Symptoms
The main sign is weakness or paralysis on one side of the body. Other signs depend on the cause. In children with a type of cerebral palsy called spastic hemiplegia, signs can include:
- Weakness or paralysis in the arm and hand on one side of the body. Sometimes the leg is affected too.
- Walking later than other children, and walking on tiptoe.
- An arm and leg on the affected side that are shorter and thinner. This is easier to see as the child grows older.
- Delayed speech. Intelligence is usually normal with this type.
- Scoliosis, a curve of the spine, in some children.
Hemiplegia from a stroke starts suddenly. A stroke can also cause sudden confusion, trouble speaking, trouble seeing, loss of balance, or a severe headache.
Causes and who gets it
Most paralysis is due to strokes or injuries such as spinal cord injury or a broken neck. Other causes include nerve diseases such as amyotrophic lateral sclerosis. Autoimmune diseases such as Guillain-Barre syndrome can also cause it.
A stroke happens when blood flow to part of the brain is lost. An ischemic stroke is caused by a blood clot that blocks a blood vessel in the brain. A hemorrhagic stroke is caused by a blood vessel that breaks and bleeds into the brain. Risk factors for stroke include high blood pressure, diabetes, heart disease, and smoking.
In children, hemiplegia can come from cerebral palsy. Cerebral palsy is caused by changes in the developing brain. Some causes of acquired cerebral palsy include brain damage early in life, brain infections, problems with blood flow to the brain, or head injury.
How doctors diagnose it
Doctors ask about your symptoms and medical history. They do a physical exam. They check coordination, balance, and any numbness or weakness in the face, arms, and legs.
When a stroke is possible, tests may include brain imaging, such as a CT scan or MRI. Doctors may also order heart tests to look for heart problems or blood clots that could have led to the stroke.
Treatment
Treatment depends on the cause. For stroke, treatments include medicines, surgery, and rehabilitation. Which ones you get depends on the type of stroke and the stage of treatment. A medicine called tPA can dissolve a blood clot. You can only get it within 4 hours of when symptoms started. The sooner you get it, the better your chance of recovery. Getting treatment right away after a stroke may save a life and improve the chances of successful rehabilitation and recovery.
Rehabilitation helps people relearn skills they lost because of damage to the brain. The goal is to help you become as independent as possible and have the best possible quality of life.
Cerebral palsy has no cure, but treatment can help a child improve. Physical therapy is an important part of care. Some medicines relax stiff muscles. Botulinum toxin shots into the muscles are often used in children with spastic cerebral palsy. Medicines and surgery can also help people move and communicate better.
When to see a doctor
Call 911 right away if someone has sudden numbness or weakness of the face, arm, or leg, especially on one side of the body. Also call 911 for sudden confusion, trouble speaking, sudden trouble seeing, sudden loss of balance, or a sudden severe headache. These can be signs of a stroke. Every minute counts.
See a doctor soon if a child walks late or walks on tiptoe, or if one arm and leg look shorter and thinner than the other side.
How a direct primary care or concierge doctor fits in
A direct primary care doctor charges a flat monthly fee instead of billing insurance, while a concierge doctor usually charges more and often works alongside insurance. Either can do an exam, track recovery over time, and help coordinate visits with a neurologist and rehabilitation therapists.
Common questions
Is hemiplegia the same as hemiparesis?
Not exactly. Hemiplegia means paralysis on one side of the body, and hemiparesis means weakness on one side. Doctors often use the two words together, for example when describing a type of cerebral palsy.
What causes hemiplegia?
Most paralysis is due to strokes or injuries such as spinal cord injury or a broken neck. In children, cerebral palsy is another cause.
Can rehabilitation help with hemiplegia?
Yes, rehabilitation can help. After a stroke, it helps people relearn skills they lost because of the damage. The goal is to help you become as independent as possible.
Can children have hemiplegia?
Yes. Spastic hemiplegia is a type of cerebral palsy. Children with it generally walk later and on tiptoe, and they may have weakness or paralysis on one side of the body.
Sources
- MedlinePlus - Paralysis
- MedlinePlus - Stroke
- National Institute of Neurological Disorders and Stroke - Cerebral Palsy
Medical Disclaimer
This content is for general educational and informational purposes only and is not medical advice. It is not a substitute for professional medical advice, diagnosis, or treatment, and reading it does not create a doctor-patient relationship. Always seek the advice of your physician or another qualified health provider with any questions about a medical condition, and never disregard or delay seeking professional advice because of something you read here. If you think you may have a medical emergency, call 911 (or your local emergency number) immediately.
