Diabetes, or hyperglycemia, is abnormally high blood glucose. If blood sugar levels are not normalized in a diabetic, the body may have trouble fending off infections due to decreased functioning of the immune system. This can affect the feet in particular due to peripheral artery disease (lack of circulation) and peripheral neuropathy (loss of feeling).
Athlete’s foot, also known as Tinea Pedis, is a skin disease caused by a fungus, usually occurring between the toes, but it can also affect other areas of the feet. Fingal infections are common on the feet because shoes create a warm, dark, and moist environment that encourages fungal growth.
Your podiatrist will perform a physical exam to check for the hallmark signs of plantar fasciitis. Typically, a physical exam is all that is needed to diagnose someone as having plantar fasciitis. However, depending on the severity or a high index of suspicion of other comorbidities your doctor may order x-rays, ultrasound, or an MRI of the foot to rule out any other pathologies.