Nutritional Deficiency
Deficiency of vital vitamins that are essential for the proper development of gums and teeth may also lead to gum pain. Deficiency of vitamins B5, B6, D, K may lead to sore and painful gums. Severe vitamin C deficiency causes scurvy which is characterized by spongy and bleeding gums along with fatigue, lethargy, and formation of spots on the skin. In addition to this, deficiency of minerals like iron, calcium and zinc may also be manifested through gum pain.