When I was pregnant, I had tendinitis in my left wrist and carpal tunnel in my right wrist. It took a couple months for the numbing/tingling to go away after I had my daughter. However, a few years later, it started up again and spread to my other joints.
I eventually discovered that I had severe heavy metal toxicity and after about four detoxifications, the numbing and tingling and pain went away. I've since switched over to an organic diet in hopes of staying as much away from toxins as possible and the joint pains and the numbness/tingling/pain in the wrists has pretty much stayed away as well. And they weren't constantly numb--it came and went, and was especially brutal after I awoke in the morning after sleeping.
All I can say is that detoxing my body and changing to organic foods (and what I ate) made a tremendous difference for me. (You might want to see a naturopathic doctor for a complete work up. He should be able to tell you what's wrong).
Also, many times people who have food allergies or food intolerances find that if they quit eating the foods that their bodies can't tolerate, the aches and pains and numbness and tingling go away. That was another issue for me; I am allergic to cow dairy (casein) and am intolerant to gluten, soy, beef, spinach, apples, bananas, certain fish/seafood, Baker's and Brewer's yeasts, among a few others. Not eating these foods has helped my body heal, and I rarely ever have any issues anymore (except for the cold. I have cold-iticaria, and swimming in a cool swimming pool will make my hands turn white and numb.).
One food group that seems to bother a lot of people with joint pains are foods from the nightshade family. Check out what foods are found in this family, and if you find that you consume a lot of them, you could try an elimination diet. Quit eating any of the foods from the nightshade family for about four weeks and see how you feel. Then reintroduce the foods you quit eating and see how you feel. A lot of people with arthritis find that if they quit eating foods from the nightshade family they can get rid of their pain or cut down drastically on how bad it is.
Hope this information was helpful. Before I'd take pharma pills or have surgery done, I'd check with a naturopath and see what might be causing your wrist numbness/tingling. It's relatively easy and simple to readjust your eating. It's more expensive and there are more lasting side effects of taking medicines and having surgery done. Good luck.