Hi doctor, I have noticed something different on the tip of the nails. At the tip of all nails a band of half white color has formed and it is going around the circumference of the nail horizontally. They are not an exact horizontal line, but a circular band around the tip of the nail. I am also attaching the picture of my nails for your better understanding. I am not sure whether they were always there or have developed recently. But, I noticed them recently. Please tell me what is the cause of this. I also have some unusual taste in my mouth or tongue. I do not know whether they are related with the nails. But, I have not had this before. Please help.
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