An<unk> is a partial thickness wound caused by damage to the skin and can be superficial involving only the epidermis to deep, involving the deep dermis.<unk>  usually involve minimal bleeding. Mild<unk> , also known as grazes or scrapes, do not scar or bleed because the dermis is left intact, but deep<unk>  that disrupt the normal dermal structures may lead to the formation of scar tissue. A more traumatic<unk> that removes all layers of skin is called an avulsion.<unk> injuries most commonly occur when exposed skin comes into moving contact with a rough surface, causing a grinding or rubbing away of the upper layers of the epidermis.
Abrasion 
Elscint
Skin fissure
Overbite
Hobcart
Veinoplus
Flat wart
Skin tag