You have not provided any details or a description of any accompanying symptoms, so it is difficult to say what these bumps could be. And without knowing what these bumps are, it is impossible to suggest any kind of treatment. Size, coloration, feel, and the presence of other symptoms such as itching or discharge are all indications of the possible cause and nature of any such bumps. It is possible that they are simply a mild rash, but on the other hand, they could also be a sign of something more serious. The best course of action for you would be to visit your doctor and let him or her physically examine the bumps that you have on your hands.
There are many potential causes of such bumps on the hand and wrist, and in fact on any part of the body. Sometimes, people do not notice these bumps for years on end, while at other times they may cause enough trouble for the person to seek prompt medical attention. In some cases of course, it is just a cosmetic problem, and the person may or may not seek treatment, depending on how much the appearance of the bumps bothers them. At the same time, with certain kinds of bumps, there is a possibility of cancer, which is why a prompt medical diagnosis is necessary. Early detection, as you know, is of the utmost importance in treating any kind of cancer.
Generally speaking, fine, tiny, raised bumps are most likely some kind of rash, due to an allergy, an infection, or some irritation, and will probably not need any complex tests in order to identify the cause. Larger bumps and masses however may need to be looked into more carefully, and may require x-ray or MRI scans, and if your doctor suspects cancer, a biopsy as well.
Ganglion cysts are the most common causes of bumps on the hands, followed by various kinds of tumors, not all of which are cancerous. Occasionally, the lump may also turn out to be an inclusion cysts, which is a kind of cyst that sometimes forms many years after a penetrating injury. There are over a hundred other reasons due to which skin bumps can occur. No proper solution can be given to an individual without actually knowing the root cause of these bumps. It is best suited that one takes the advice of a professional, like a skin specialist or a dermatologist, and gets the problem diagnosed.
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