Detailed answer

Stretch marks, also known as striae, are caused due to the stretching and tearing of the dermis layer of the skin. This can occur during periods of rapid growth, weight gain, or pregnancy. Stretch marks are not related to allergies, which are immune reactions to certain substances. Allergies typically manifest as symptoms such as itching, rash, hives, or respiratory problems. While allergies can cause changes in the skin, such as redness or irritation, these are different from stretch marks. Stretch marks are a completely separate issue and are not related to allergies.