Underneath my finger nail the skin on the tip of my fingers look orange/ brown what cause it to change?

Something touched?: If all the fingertips are discolored, it could be something you touched, or something you ate. Also, could be inflammation from a medication or an underlying skin condition. Please have them checked by your doctor or do a telemedicine visit via HealthTap's other platform. You may need other testing, but the first step is for this to be examined which we can't do here.