Medically reviewed by Susan Bard, MD Inner thigh boils are an infection of the hair follicle usually caused by a bacteria known as Staphylococcus aureus (staph). They can develop anywhere on the body ...

Medically reviewed by Leah Ansell, MD A rash on the inner thigh or near the groin can be caused by close-fitting clothing, leg shaving, or situations that result in little airflow and sweat that can ...