What body part is least advisable to tattoo?

Tattooing areas with high mobility, such as joints, is generally considered least advisable due to several reasons related to both the tattooing process and the long-term appearance of the tattoo.

High mobility areas are prone to frequent movement and stretching, which can cause the skin to experience more strain than more stable body parts. The constant motion in these areas can lead to complications such as fading, blurring, or distortion of the tattoo over time, making it difficult for the artist to achieve clean lines and precise detail during the application. Additionally, the healing process can be more complex in these areas, as movement can hinder proper healing and increase the risk of infection or irritation.

Choosing to tattoo joints or similarly mobile regions often results in a tattoo that may not age as well as one placed on more stable skin, leading to possible dissatisfaction with the final outcome years down the line.