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Bleeding gums - Why do my gums bleed when I brush my teeth? - Top 10 reasons

Bad oral hygiene

Gums (Gingiva) bleed when irritated and this happens mainly due to poor oral hygiene. A lot of people do not brush their teeth properly and this leads to the accumulation of dental plaque and tartar on teeth.
As a result of this gums become red and irritated, swollen and painful and bleed at the slightest provocation.

Teeth Misalignment, overlapping teeth or overcrowded teeth

Misaligned teeth can be a serious problem since teeth are inaccessible for cleaning and brushing. Due to this, the food is trapped between adjacent teeth, which causes inflammation of the gums.

Inflammation of the gums due to a hard toothbrush

This can happen due to fanatic brushing or use of a hard toothbrush. It is recommended to change the hard with a soft toothbrush every 3 months.

Bleeding gums due to lack of vitamin C

In medicine, this is characterized as a disease and happens when we do not include enough fruits and vegetables in our diet. This leads to swelling, pain, bleeding and bone loss in teeth.

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Bleeding gums due to lack of vitamin K

Vitamin K is an important factor in the blood clotting process of the body. Hence, when it is deficient, the bleeding of the gums increases. The main source of Vitamin K in our body is the intestinal microflora. The use of oral antibiotics which kill the abdominal microflora increases the tendency to bleeding gums.

Hormonal changes in women

Hormonal changes occur at different stages in a woman's life, such as puberty, pregnancy or postmenopausal.
These changes also occur regularly during stressful periods or during the use of oral contraceptive pills. These hormonal changes increase the chances of gingival bleeding.

Gingival bleeding  due to blood disorders

There is a whole range of blood disorders which increases our general tendency to bleeding. This first can be manifested by bleeding from the gums.

It is important to remember - never to ignore bleeding gums, as they could be a sign of some more serious problem.


Today it is quite common to encounter people living with chronic diseases who need to use drugs regularly. Certain medications such as aspirin, clopidogrel, etc. can cause gingival bleeding.

Bleeding gums due to Liver disease

The liver is the main organ that produces many factors and plays an important part of the coagulation process in our bodies. Any kind of liver disease or chronic alcoholism that disrupts the metabolism of the liver can lead to bleeding gingiva.

Bleeding gums due to cancer

Certain cancers, such as leukemia (blood cancer) or bone cancer can cause gingival bleeding.

Besides the reasons listed above, there can be also many other reasons as tobacco use, stress, radiation therapy, HIV etc., which can cause gingival bleeding.


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