The lips are generally considered the most sensitive part of the human body to touch.
This is due to a high concentration of nerve endings in the lips, which allows for a greater perception of touch, temperature, and pain.
The lips are also very mobile and flexible, which further enhances their sensitivity.
Other areas of the body with high sensitivity include the fingertips, eyelids, and genitals.
The sensitivity of these areas can vary from person to person and can be influenced by factors such as age, health, and individual differences.
The sensitivity of the lips can be affected by factors such as dryness, irritation, and certain medical conditions.