Get Virtual Care
For Businesses
About Us
A member asked:
Why do i get my old ms symptoms back when i am heated up?
8 doctors weighed in across 3 answers
Old MS pathways: Electric signal transmission across nerve fibers (axons) requires good insulation (myelin). While MS inflammation is followed by myelin repair, the extent of repair may vary and is never perfect. When core body temperature goes up, some of these old MS lesioned pathways are prone to "drop the signal". This is the "uhthoff phenomenon". No permanent damage is done.
Answered 1/12/2015
6.3k views
Nerve transmission: This is a well known phenomenon and was used in diagnosis in the past. It is assumed to be caused by heat slowing conduction in previously damaged nerves.
Answered 1/10/2015
5.2k views
Insulation: Your myelin nerve coverings are partially dysfunctional due to prior inflammatory attack and heat of any kind can cause changes in intracellular potassium resulting in symptoms. This is reversable by cooling
Answered 5/23/2014
4k views
Related Questions
A member asked:
2 tiny lesions on brain 1 enhanced, 1 non. No symptoms of MS. Only have headaches. No lesions on spine. Dr's are confused. What could be causing them?
A doctor has provided 1 answer
A member asked:
My MRI was clean, but I have some ms symptoms. Could it be primary progressive. I'm a 17 year old, and very worried. ?
A doctor has provided 1 answer
A member asked:
Why do high temperatures make multiple sclerosis symptoms worse? I live in a hot climate and really love being outside, but i cant much anymore because my MS symptoms get really bad. Why does that happen and is there anything i can take or do so i can en
3 doctors weighed in across 2 answers
A member asked:
Are there similar symptoms of MS and nerve damage in the back?
5 doctors weighed in across 2 answers
A member asked:
Long history of headaches. 2 lesions on brain, 1 old 4.5mm, 1 enhanced 3mm. Dr is saying MS but I have no MS symptoms. What could these be from?
4 doctors weighed in across 2 answers
People also searched for:
I am a 58 year old woman, who's feet are always cold and in pain I have been in good health although 3 years ago i had some MS type symptoms but the spinal fluid came back normal.
How do u get ms? Wat are the symptoms & how does it make u feel.
Occasionally I get an electric zap(sometimes painful) sensation in different spots on body. Could this be a sign of MS? Very scared. No other symptoms
Can people over 70 get ms? I seem to have many symptoms but wonder if testing is futile if there is no treatment for my age.
I have ms symptoms. My mri is clean, could I have progressive? I'm 17 yrs old
Didn't find what you're looking for?
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your questionMore of what we treat
Download HealthTap
Video visit and message your doctor
