PILONIDAL SINUS (INGROWN HAIR)
PILONIDAL SINUS (INGROWN HAIR) WHAT IS PILONIDAL SINUS (INGROWN HAIR)? Ingrown hair and pilonidal sinus are the common and medical names of the disease, respectively. A pilonidal sinus develops due to ingrown hair under the skin. Although it develops most commonly in the coccygeal area, it may also occur in the navel, face, groin area, …