Many women notice increased gum redness, swelling and bleeding during pregnancy. This is pregnancy gingivitis, which is favored by hormonal changes in the female body. The hormones of pregnancy lead to increased blood flow to the mucous membranes and loosening of the tissue. This facilitates penetration of periodontitis-associated pathogens and thus promotes inflammation. Even small amounts of plaque and bacteria can then cause gingivitis. The risk of developing periodontitis increases as a consequence.