Some of the symptoms of your body are reflected in your nails, so every time you get a manicure, don't forget to pay attention to how healthy your nails are.
(1) uniform nail color, light pink
(2) tough, moderate thickness and hardness, not easy to break
(3) the surface is smooth, shiny, no stratification, texture, etc
(4) neat nail edge, no defect (except external causes)
(5) the nail root of the half moon (commonly known as the crescent) accounted for a fifth of the rise of the nail, milk white is appropriate (some people were born without)