Well assuming that you don't have some of the more serious causes of tingling (such as pregnancy, raynaud's phenomenon, heart attack, etc......).
Then it is probably from overuse that can cause an area to become swollen and put pressure on a nerve(sorta like carpal tunnel). It should go away after a few days of not riding (which you would be using the same type of grip, thus irritating it again)
If it doesn't go away after a few days, you definitely need to get it checked out. Also, it could be other things (i am no expert) and if it continues to do it everytime you ride a long distance, it may have something to do with your bike setup (are keeping too much weight on your hands for too long).
I had the same problem( not from biking). It's a pinched nerve in the wrist. Probalby caused by your wrist being bent or tight gloves while riding. If it's still tingly the next day, I'd have it checked by a doctor.
Had tingly fingers before too...and bar position was the answer for me.
Had tingly toes as well and there are a number of potential solutions:
loosen your straps off on your shoes that can help.
look to your body position and bike fit...seat position,cleat position on the shoe, seat height all will have a big impact on the sciatic never which is most likely what you are feeling in your toes as they are the nerve endings.
Go to someone with some years behind bike fitting, computers won't give you all the answers...old school is best.
Thanks for the help. It took 4-5 days for the feeling to go away. I found that I could actually press on spot on my left palm and feel a bruised place that would make the tingly sensation come right back. It's exactly where I lay the butt of my hand on the top of the bars when I get tired. I'm assuming I bruised the nerve.
I guess the trick is not to get tired.
I did a 35 mile, extremely hilly ride yesterday and did fine. I consciously made sure I didn't grip the bar in the offending spot, and it did fine.
I had numbness inthumb and index finger. I am an Emergency Room Rn and asked one of my physicians what he believed was wrong. At first I was concerned due to my high blood pressure and diabetes that it was signs of stroke. He stated it was not common to have such specific pain without any injury. I then remembered I just started riding my road bike on hillier route to work. I was probably gripping the tops of the brake hoods too tightly climbing the hills. I now focus on not over gripping and making frequent hand position changes on the bars every 5 minutes. In flat areas I am not concerned about turning quickly I even have as little as 2 fingers lightly touching the handle bars to guide the front wheel.