Hello,

Thanks for consulting HCM,

Read your query bleeding and blackness in gums can be due to carious tooth, decayed tooth , or gum problem due to deposition of plaqie and calculus in subgingival region of gums . For this i will suggest you to consult dentist for treatment 9f carious tooth , and cleaning of teeth that is oral prophylaxis .
Inmean time do warm saline rinses 2 -3 times a day , maintain proper oral hygiene , brush your teeth twice daily , use mouthwash chlorhexidine regularly .

Hope this will help you.

Thanks for your query, I have gone through your query.
The bleeding gums can be secondary to the gum infection due to the deposits causing irritation to the gums. The other possible cause can a hyperplastic pulpitis, where the tooth starts bleeding even after minor injury or brushing. The other rare cause can be because of bleeding disorders like thrombocytopenic purpura. The black discoloration over the gums can be a normal pigmentation.
Consult a oral physician and get these things ruled out. Get a complete blood investigation along with INR to rule out the bleeding disorders.
If any gum infection then get your teeth cleaned and use topical gum astringents like stolin gum paint.
if pulp polyp is there then get it root canal treated.
If bleeding disorder is there then consult a general physician.
I hope my answer will help you, take care.

I hope my answer will help you, take care.