Hurt my gum while flossing
A flossing injury usually settles with gentle care, but ongoing pain, swelling, or bleeding can indicate a separate gum or tooth problem.
The short answer
If flossing cut or bruised your gum, stop forcing the floss, keep the area clean with gentle brushing, and watch for signs that a tooth or gum problem needs treatment.
What is the direct answer?
What does this question mean?
Snapping floss through a tight contact or pushing it into the papilla can tear the thin gum between teeth. Pain can also come from inflamed gingiva, tartar, a rough filling, decay, or food trapped below the gum edge.
What can you do next?
Rinse gently with water, brush with a soft toothbrush, and return to careful interdental cleaning as tenderness allows. Guide the floss with both hands, curve it around each tooth, and use an interdental brush or water flosser if the contact is difficult to clean.
When should you seek dental care?
Arrange care if pain, bleeding, or swelling does not settle, or if the same spot is repeatedly injured. Seek urgent help when bleeding will not stop with pressure or when facial swelling, fever, or swallowing difficulty develops.
What should you ask the dentist?
Ask whether the tissue is simply traumatised or whether a pocket, cavity, filling margin, or calculus is causing the problem. Ask the dentist to demonstrate a safe cleaning method for that contact.
Frequently asked questions
Should I avoid flossing the sore spot?
Avoid force, but continue gentle plaque removal and ask for an alternative interdental tool if the contact is difficult.
Can a filling make floss cut my gum?
Yes. A rough or overhanging filling can catch floss and irritate the gum until the dentist adjusts it.