Medical procedures, such as skin augmentation generally achieved by injecting substances such as fillers into a patient's body, for example in the face of a patient, may require multiple injections at distinct injection sites in the patient's face. Multiple needle entries may be painful and at times may result in bruising, the magnitude and likelihood of which increase with increasing injections. The advent of microcannulas reduces pain and bruising. However, microcannulas may be blunt and/or may be flexible, thereby possibly requiring creation of an entry point prior to every insertion.