Gingival hyperplasia

Causes of gingival hyperplasia include:

• Drug-induced
• Phenytoin
• Cyclosprin
• Calcium channel blockers (nifedipine, verapamil, nimodipine) 
• Bleomycin 
• Hormonal surges 
• Puberty 
• Pregnancy 
• Menopause 
• Vitamin C deficiency 
• Leukaemia 
• Bacterial infection 
• Hypothyroidism 

References

Fisekcioglu, E., Dolekoglu, S. and Llguy, D. Idiopathic gingival hyperplasia: clinical features and differential diagnosis. J Can Dent Assoc. 2011; 77:b148.

Hassell, T. and Hefti, A. Drug-induced gingival overgrowth: old problem, new problem. Crit Rev Oral Biol Med. 1991; 2(1): 103-137.