Why do tattoos exist permanently on the body?

On average, people lose 30,000 - 40,000 skin cells in an hour, which is about 1 million skin cells a day. That makes us dump up to 35kg of skin cells throughout our lives and everything painted on the skin will easily peel off or wash away.

So why does the tattoo keep forever on our bodies without being lost with skin cells?

The answer is very simple. When tattooing colored beads are inserted into the dermis deep inside but not the outer skin layer changes daily.

Why do tattoos exist permanently on the body? Picture 1

When tattooed, small needles carry tattoo ink that rapidly pierces through the skin to the fibers, keratosis in the dermis and leaves tattoo ink there. Of course, this creates a wound that causes the body to react. First, the immune system takes the cell to the wound and heals the damaged skin. This is the process that makes tattoos last forever.

Cells (also called macrophages) move to the injured area and eat the saved tattoo ink. Other skin cells and organs, like fibroblasts, also attract tattoo ink, making them stuck between the dermis.

Why do tattoos exist permanently on the body? Picture 2

Part of the ink seeps into the epidermis, but the squamous epithelial cell is quickly replaced by new cells without ink.

After about 2 to 4 weeks, the body has completely recovered with the saved tattoo ink.

The tattoo still fades over time as the body constantly reacts to the invaded tattoo ink. But because skin cells are relatively stable, most ink particles remain deep in human skin throughout life.

With today's modern technology, people can erase permanent tattoos using laser. It will penetrate deep into the skin, breaking ink particles into many small molecules that help macrophages kill easily.