Men are puzzled by the ‘stitch line’ running down the scrotum: Here’s what it actually is

Many men eventually discover a seam-like line on their scrotum and wonder whether it’s a scar, or something abnormal. In fact, it’s completely normal and medically known as the scrotal raphe, a developmental remnant from early fetal life. Health experts explain how, during embryonic development, genital tissue fuses under the influence of hormones, leaving this visible line, a harmless anatomical marker we all began with.