Pigmentation can happen in any part of the body, including the lips.
Read on to know about the common causes.
Vitamin B12 deficiency is one of the most common causes for dark/pigmented lips.
Dehydration is also one of the possible causes for discolored lips.
Certain makeup items and toothpaste can cause an allergic reaction leading to pigmentation of lips.
Dark spots or pigmented lips can also be the side effects of certain medications.
Nicotine and benzopyrenes present in tobacco can darken lips.
Hormonal imbalances in the body can lead to hyperpigmentation of lips.