Brownish Spots on Skin Most numerous on face neck and buttocks but found diffusely on entire body skin as well. H/O Posterio Inferior MI and angina attack in 2003 , patient is on medication accordingly. First few brown spots occured on Skin of umbilical region in 1996 during 4-5 th month of gestation. These spots occured after some injection during pregnancy. Since then they started to appear on forearms , then neck eventually on entire skin of body , possibly very late on facial skin .