Numbness lasting more than 24 hours on one side of the body is something worth paying attention to. In MS, this can be a sign of a relapse, where inflammation interferes with nerve signals. It could also be related to several other factors. Here are some common triggers that can cause or prolong numbness in MS:
- Show Full Answer
Numbness lasting more than 24 hours on one side of the body is something worth paying attention to. In MS, this can be a sign of a relapse, where inflammation interferes with nerve signals. It could also be related to several other factors. Here are some common triggers that can cause or prolong numbness in MS:
- Relapse/inflammation – The immune system attacks myelin, disrupting nerve signals
- Overheating – A rise in body temperature can worsen or extend numbness (known as Uhthoff's phenomenon)
- Fatigue – A common MS symptom that can also trigger sensory symptoms
- Stress – A known MS trigger that can intensify numbness
- Vitamin B12 deficiency – Low levels can cause or prolong tingling and numbness
- Illness or infection – Can bring on numbness, especially urinary tract infections or fever If the numbness lasts for weeks, or comes with new pain or weakness, it's important to let your neurologist know as soon as possible. They may consider corticosteroids if a relapse is suspected, or investigate other contributing factors like vitamin deficiencies or medication side effects.
Don't brush it off — your quality of life matters, and your care team is there to help!
July 10
Join
Your Privacy Choices
