Sarcoidosis, an autoimmune disease that can affect the skin and other organs, sometimes first appears with bumps at the site of a tattoo, she says. Infections are more common within the first couple of days or weeks of getting a tattoo, Dr.

Skin conditions: I cannot tattoo over active skin conditions including acne, open wounds/healing scars, psoriasis, sun burn, rash, or any sort of infection. Please be aware that tattooing can flare up conditions such as psoriasis.

Older tattoos may be raised due to scar tissue Thicker lines, and more pressure applied during tattooing, can cause some scarring. It's nothing to be concerned about, but it can sometimes raise up, and this is generally caused by changes in body temperature or weather conditions, as well as general health.