It is believed that 90% of women will have some form of stretch marks during pregnancy. Rapid weight gain & loss are also common causes of stretch marks in men and women. Women who are overweight have more estrogen since it is produced in the fatty tissue. As we know oestrogen (estrogen) stimulates the fibroblasts to release collagenase (an enzyme that dissolves collagen), hence why overweight people are more prone to stretch marks and cellulite. To treat stretch marks effectively, please call for a skin consultation. Stretch Mark Treatment Stomach $220 Top of thighs $160