Here's a breakdown:
* Cause: These furrows are usually caused by natural aging and dehydration. As we age, our tongue tissue loses elasticity and can become thinner, which can lead to the appearance of more prominent furrows. Dehydration can also make these furrows more noticeable.
* Appearance: The furrows can vary in appearance, ranging from shallow and subtle to deep and pronounced. They are often more prominent in the middle of the tongue and may extend from the tip to the base.
* Significance: While they can be a cosmetic concern, they are generally not a cause for worry. However, it's important to note that deep furrows in the tongue, along with other symptoms such as pain, swelling, or difficulty swallowing, could be a sign of an underlying medical condition. In this case, it's crucial to consult a doctor for a proper diagnosis and treatment.
If you are concerned about longitudinal furrows on your tongue, it's always best to consult with your doctor or a qualified medical professional. They can help determine if the furrows are a normal part of aging or a symptom of a more serious condition.