Inflammatory<unk> 
Gingivitis
Poor oral hygiene and plaque retention
Restorative and Orthodontic Applicances
Drug Induced<unk> 
Anti-convulsants (Phenytoin, Valproate, etc.)
Immunosuppressants (Cyclosporine, Tacrolimus, etc.)
Calcium channel blockers (Nifedipine, Amlodipine, etc.)
Congenital<unk> 
Systemic causes of<unk> 
Leukemia
Granulomatous disease
Granulomatosis with polyangiitis
Sarcoidosis
Pyogenic granuloma
Pregnancy
Warts
Lymphoproliferative disease (e.g. leukemia, lymphoma)
Paraneoplastic syndrome
Benign Neoplasms
Papilloma, Fibroma, Giant Cell granuloma
Periodontitis
Gingivitis
Poor oral hygiene and plaque retention
Restorative and Orthodontic Applicances
Anti-convulsants (Phenytoin, Valproate, etc.)
Immunosuppressants (Cyclosporine, Tacrolimus, etc.)
Calcium channel blockers (Nifedipine, Amlodipine, etc.)
Leukemia
Granulomatous disease
Granulomatosis with polyangiitis
Sarcoidosis
Pyogenic granuloma
Pregnancy
Warts
Lymphoproliferative disease (e.g. leukemia, lymphoma)
Paraneoplastic syndrome
Benign Neoplasms
Papilloma, Fibroma, Giant Cell granuloma
Granulomatosis with polyangiitis
Sarcoidosis
Papilloma, Fibroma, Giant Cell granuloma
Gingival hyperplasia
Inflammatory hyperplasia
Phimosis
Gingivitis
Hepatomegaly
Poor oral hygiene and plaque retention
Dark raised skin lesions
Restorative and Orthodontic Applicances