Husbands hands shake when he tries to do fine motor tasks

Called intention tremor as different from essential tremor can have various causes, so a neurologist would be advised. I know patients who have complete relief with Botox or Myobloc injection in a muscle in the arm detected by emg typically effective for three months.
An overactive muscle causes the tremor, but you do want to know the cause of the overactive muscle.

Could be benign essential tremor , I see a neurologist, I shake when I reach to do something, and I can't write well.

Hi @melissa123, you may also be interested in these related discussions:
- Essential tremors: Anyone experiencing shaking?: https://connect.mayoclinic.org/discussion/essential-tremor-3/
- Hand tremors: https://connect.mayoclinic.org/discussion/hand-tremors/

Here's additional information
What are shaky hands a symptom of?
"Hand tremors can be a symptom of Parkinson's disease (PD), multiple sclerosis (MS), or dystonia. They can also occur following a stroke or traumatic brain injury. However, essential tremors are one of the most common causes of hand tremors and can occur without any other neurological signs."
-- Shaking hands (hand tremors): 14 causes and treatments: https://www.medicalnewstoday.com/articles/322195

I agree with @gently and @palermo1 that seeing a neurologist is your best next step to investigate further.

I discovered my right hand wasn't steady, my handwriting got worse. I stopped playing games on my phone with my right hand, and shaking subsided. Neurologist wanted to do all kinds of tests, but I tried stopping playing games, and VOILA, didn't need any tests, just common sense.

Wow, he does play games on his phone. I wonder if it's as easy as that?

I had been diagnosed with intention and essential tremor, over 25 year ago, along with some neuropathy, numbness in lower portions of legs, and a few other minor symptoms. I had problems with fine motor skills, with my job, doing assembly work etc. at a car manufacturing facility! I was put in hosputal by a neurologist for a week of multiple tests, and, as a result, was given the diagnosis, of probable demyelinating disease! No treatment was given. Then, about 12 years ago, I developed a pill rolling tremot, in my left hand. For a few years it was very mild, but was getting gradually worse, over a few years, along with several other symptoms. Finally, after all my tremors got worse, and with other symptoms, with no answers, from my family Doctor, my Nurse daughter moved us from our small town to a major city, where there were specialists! An internist examined me, checked out the tremors, and referred me to a neurologist! The Internist came right out and told me he suspected Parkinson’s Disease, and, after testing, the neurologist confirmed the diagnosis of Parkinson’s Disease! That was 6 years ago! Good luck with your journey, dealing with tremors!

I noticed yesterday that when I bent over to tie my sneaker I was trembling and my balance was shaky. I have been diagnosed with microvascular brain inshemnia. I also have had chronic insomnia for the past year and half. I was given 12.5 mg of seraqual to help sleep. Also I feel I am in a brain fog when I get up. I have trouble getting dressed. I am 71 years old and type 2 diabetic. Getting worried that will be like this forever now.

To add to my comment been to a neurologist and they have not found anything else wrong. Also noticed my vision in the dark is real bad. Had cataract surgery and my retina is ok. Upset by all this happpening.

I'll start with what works for maintaining General Good Health often helps to ward off Specific Problems -- PD is especially responsive to staying in good condition: strength, flexibility, balance, endurance, even posture. Nutritious food (and tasty!) sound sleep, and stress control all go to help. At 80, I often walk up many floors up and down even when my apt is just one floor up. Why? Just a tease, Hey how about walking with this 20 pound grocery UP just to see how Fun it might be? No competition, no one watching, you can always change your mind. Yesterday was hot and humid; after having walked from the bus stop, two more floors I was already panting; 3 more floors with twice the normal heart beat, I felt good my health)

(I finally renewed my health card that had expired for two years: another tease, 'Hey, wanna see what happens if no up-to date health insurance? After all you don't use it for anything.' I suspect I was a little More attentive to Self-Care. Strange how we humans respond)

For intensional tremors I was given Propranolol 5mg but hard to cut in half so upped to 10 mg and works well.