Hi...
There can be a lot of reasons associated with the gingival enlargement you have like collection of food debris and bacteria, any medications you are taking, hereditary disease, systemic causes like hormones and blood disorders etc.
So a proper history and physical examination will only help to identify the cause and the treatment.
Till then take good care of your dental health by brushing, rinsing well after every meal and eating healthy
Next Steps
Consult a dentist online/offline
Health Tips
Maintain good oral hygiene like brush twice daily, do warm saline rinses