American actress Selma Blair revealed that she has multiple sclerosis (MS) in an Instagram publication.
The 46-year-old star of Cruel Intentions said she was diagnosed in August but has had symptoms for years.
"I'm disabled, I fall sometimes, I drop things," he wrote, saying the news was "overwhelming at first."
Multiple sclerosis is an incurable condition that affects the brain or spinal cord and causes vision, balance and muscle problems.
According to the NHS in the United Kingdom, it is two or three times more likely in women than in men, and is usually diagnosed in people of 20 and 30 years.
The cause of the condition is still unknown.
Blair is scheduled to appear on the Netflix show, Another Life, and said the "deep" help she received from costume designer Allisa Swanson had inspired her to present the story.
In his publication, he said he was "in the middle of everything," but he hoped to give hope to others by talking about the condition.
Despite the news, the actress said she was relieved to finally receive the diagnosis.
"My memory is cloudy, and my left side is asking for directions to a broken GPS, but we are doing it," he wrote.
"I want to play with my son again, I want to walk down the street and ride my horse, I have MS and I'm fine."
Blair also starred in Legally Blonde and the Hellboy series.
There is no cure for MS, but treatment can help control symptoms. This may include painkillers or medications to reduce nerve inflammation, physical therapy to relieve muscle stiffness or medications to slow the progression of the disease.
In social networks, many of those living with the disease sent support to Blair, including journalist Victoria Brownworth, who thanked her for helping to demystify him.
"I was dxd [diagnosed] with MS at 30, "he wrote." I can relate to how #SelmaBlair feels. "
Actress-turned-activist Rose McGowan also tweeted her best wishes and wrote: "You are a star being, Selma Blair, your truth and honesty will help many, blessings on your journey."