The tongue can have many grooves or a single groove down the middle with others branching off from it. Scrotal tongue affects 2% to 5% of the population of the United States. Rates in other countries vary. However, one study reported that the condition is found in up to 21% of people worldwide.
People usually are born with this condition, but may not notice it right away. It gets more noticeable as you age.
Sometimes, scrotal tongue occurs as a result of infection or poor nutrition. It also is seen in people with certain health conditions. These include: