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Yellowing fingernails from chemical exposure
I got a chemical burn on forearm from fertilizer at work. My finger nails went bright yellow also. Why? and how long will they stay this color?
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144586 tn?1284669764
The yellow stain comes from the nitrates. It was common among those who handled civilian dynamite, which contained nitroglycerine in diatomaceous earth.

The chemical burn will heal with no long-lasting effects, and the yellow will eventually fade and diappear. How long is hard to say, but it won't be forever.
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351246 tn?1379685732
Hi
Welcome to the MedHelp forum!
A chemical burn and yellowing of nails may take some time to heal. One thing that needs to be ruled out is inflammation of the lymph channels because of the chemical burn. This can also cause yellowing of nails. Treating lymphangitis can often treat the yellowing.
Please consult your PCP for primary examination.
Take care!
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