Biting on your tongue may keep you from saying things you may regret later (even if this act may give you discomfort). But are you aware of other problems that may cause harm to your tongue?
Canker sores on the tongue may be a result of trauma due to accidental biting, or a viral infection.
An allergic reaction can cause the tongue to become painfully swollen.
Your tongue can appear abnormally white due to poor oral hygiene, smoking, or excessive alcohol consumption.
A hairy tongue can also be caused by smoking or drinking alcohol, or as a result of antibiotics use.
The tongue can be irritated due to hormonal changes (especially in postmenopausal women), and also because of smoking or drinking alcohol.