Limb Weakness
Free Symptom Checker
with Physician-supervised AI
Reviewed By:
Bret Mobley, MD, MS (Neuropathology)
Dr. Mobley graduated from the University of Michigan Medical School, completing a masters degree in neuroscience between his second and third years of medical school. He trained as a resident in pathology at Stanford University Hospital before joining the faculty of Vanderbilt University Medical Center in Nashville Tennessee in 2010. He was promoted to Associate Professor in 2018 and to Neuropathology Division Director in 2020.
Shohei Harase, MD (Neurology)
Dr. Harase spent his junior and senior high school years in Finland and the U.S. After graduating from the University of Washington (Bachelor of Science, Molecular and Cellular Biology), he worked for Apple Japan Inc. before entering the University of the Ryukyus School of Medicine. He completed his residency at Okinawa Prefectural Chubu Hospital, where he received the Best Resident Award in 2016 and 2017. In 2021, he joined the Department of Cerebrovascular Medicine at the National Cerebral and Cardiovascular Center, specializing in hyperacute stroke.
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Content updated on Jan 4, 2023
About the symptom
Reduced muscle strength, where you try your best to move a limb but a normal muscle contraction doesn't happen. Muscle weakness is usually due to nerve problems or problems inside the muscles.
When to see a doctor
Seek professional care if you experience any of the following symptoms
Weakness in arms or legs
Possible causes
- osteoporosis
Osteoporosis is a disease that makes your bones weak and brittle, resulting in the bone to fracture easily even with minor trauma or stress (for instance, after a simple fall). It may be caused due to long-term low calcium intake, estrogen deficiencies in women, and an inactive lifestyle.
- Alzheimer dementia (AD)
Alzheimer's disease is the most common cause of dementia. The brain shrinks, affecting memory and behavior. Symptoms worsen over time and can interfere with daily life. Increasing age raises the risk for Alzheimer dementia.
- Spasticity
Spasticity is abnormal muscle tightness because of extended muscle contraction. It is typically linked to damage to the spinal cord, brain, or nerves.
- Migraine
- Neuropathic pain
- Chronic pain
Related serious diseases
- Cerebral infarction
Cerebral infarction refers to damage to brain tissue resulting from a stroke. It occurs due to decreased blood supply and oxygen delivery to the brain, causing brain cell death and brain damage. It is typically caused by a blood clot or fatty/cholesterol plaques blocking a blood vessel to the brain, but can also occur if a blood vessel ruptures and bleeds into the brain.
- Bronchial asthma
- Acute phase of spinal cord injury
- Hyponatremia
Questions your doctor may ask about this symptom
Your doctor may ask these questions to check for this symptom
Do you feel any weakness in your arms or legs?
Are you unable to move the left or right side of your body?
You mentioned "Weakness in limbs". Does this differ between your left and right sides?
Do you have slurred speech?
Do you have double vision?
Other Related Symptoms
Similar symptoms or complaints
Symptoms from the same body system / part
Symptoms treated by the same specialty
Reviewed By:
Bret Mobley, MD, MS (Neuropathology)
Dr. Mobley graduated from the University of Michigan Medical School, completing a masters degree in neuroscience between his second and third years of medical school. He trained as a resident in pathology at Stanford University Hospital before joining the faculty of Vanderbilt University Medical Center in Nashville Tennessee in 2010. He was promoted to Associate Professor in 2018 and to Neuropathology Division Director in 2020.
Shohei Harase, MD (Neurology)
Dr. Harase spent his junior and senior high school years in Finland and the U.S. After graduating from the University of Washington (Bachelor of Science, Molecular and Cellular Biology), he worked for Apple Japan Inc. before entering the University of the Ryukyus School of Medicine. He completed his residency at Okinawa Prefectural Chubu Hospital, where he received the Best Resident Award in 2016 and 2017. In 2021, he joined the Department of Cerebrovascular Medicine at the National Cerebral and Cardiovascular Center, specializing in hyperacute stroke.
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Seiji Kanazawa, MD, PHD
Obstetrics and gynecology (OBGYN)
National Center for Child Health and Development, Japan