Bleeding Gums While Brushing: When to See a Gum Specialist You notice pink in the sink and make a quick bargain with yourself: “I must have brushed too hard. I’ll avoid that spot tomorrow.” If it happens once after you catch the gum with a brush, there may be a simple explanation. If it keeps happening, avoiding the area can let plaque build up and make the bleeding worse. Bleeding gums are common, but they should not become your normal. It is a sign worth investigating, espe