Dark gums or purple gums as they are sometimes called have a variety of causes. and there a number of things that can cause this condition to arise in gums. Many are benign and/or yield readily to treatment by dental In a couple of instances. However, the underlying cause is more serious than the gum lightening services. A better understanding of dark gums can help patients determine gums verity. If they should talk to a professional immediately upon noticing the condition or wait until gums. Their next regularly scheduled dental checkup our gums.