Uploaded October 2019 | Updated September 2026, 2 days ago
Uhthoff's phenomenon (also known as Uhthoff's syndrome, Uhthoff's sign, and Uhthoff's symptom) is the temporary worsening of MS symptoms when the body gets hot, whether it be from hot weather, exercise, fever, or saunas and hot tubs. It is only temporary and does resolve when the body cools again.
MS Research Australia is the largest not-for-profit organisation dedicated to funding, coordinating, educating and advocating for MS research as part of the worldwide effort to solve MS.
Uhthoff's phenomenon (also known as Uhthoff's syndrome, Uhthoff's sign, and Uhthoff's symptom) is the temporary worsening of MS symptoms when the body gets hot, whether it be from hot weather, exercise, fever, or saunas and hot tubs. It is only temporary and does resolve when the body cools again.
MS Research Australia is the largest not-for-profit organisation dedicated to funding, coordinating, educating and advocating for MS research as part of the worldwide effort to solve MS.
