3. Yellow Skin
Yellowing skin is technically referred to as jaundice. This is commonly caused by hepatitis A and other infections/illnesses that attack the liver. Again, the reason this happens is that the liver is responsible for helping to clear the unwanted toxins and waste from the bloodstream. With this process gone, the body is now free to accumulate unwanted toxins. This in turn can cause a build-up that actually has the same yellowish color that you see in your urine.
In other words, while it may be very unpleasant to think of: the yellow skin you notice when you have hepatitis A is actually caused by urine that is moving around your body close to your skin!