Stretch marks appear as bands of parallel lines on the skin. The way it looks may vary depending on how long you have had them and what caused them. Lines of stretch marks come up with different colour and texture, which is different from normal skin. The range of colours that stretch marks may have could vary from purple to bright pink to light grey. If you touch stretch marks, you could feel the slight crease or indentation on your skin.
Stretch marks seem to be caused by stretching of the skin. The severity is affected by different factors which include – genetic tendency, degree of stress and cortisone level (a hormone produced by the adrenal glands) which weakens the elasticity of the skin.