Stretch marks: Remedies and treatments Stomach stretch marks can make you feel too embarrassed to wear a bikini, to change clothes in front of others at the gym, or even to undress in front of your loved one. Stretch marks that appear on the stomach occur as a result of extreme weight gain and loss, usually due to pregnancy. Pregnancy stretch marks can leave unattractive, reddish purple marks all over your hips and breasts, but are particularly inclined to mark […]