Black tongue is a temporary, painless oral condition, also known as hairy tongue.
The hairy appearance the tongue shows in some cases is caused by the accumulation of keratin, a fibrous protein that fulfills a protective function.
The first sign is a change in the color of the tongue, which can turn black, yellow, brown, green, or white.
The diagnosis is made based on the pigmentation (color) of the tongue and the information provided by the person to the health professional.
Making changes in your eating habits, consumption of certain foods and oral prophylaxis will allow you to avoid this condition.
Use tongue scraper to remove accumulated bacteria and debris. Reduce the consumption of alcohol, coffee, tea, and tobacco.