Diabetics are more prone to recurring cellulitis than nondiabetics, according to the NHS Choices. This is especially true if the diabetes is poorly controlled. Poorly controlled diabetes weakens a patient's immune system and makes him more susceptible to the bacteria that causes cellulitis.
Diabetes also causes problems with circulation, which puts diabetics at higher risk for skin ulcers, according to NHS Choices. Anyone who has had cellulitis before, especially in the lower legs, is at higher risk for having it recur, claims Mayo Clinic.
Cellulitis needs prompt medical treatment, according to Mayo Clinic. This is because it can quickly spread to the blood and the lymphatic system.