Rapid weight gain is a cause of stretch marks, isn't it?

What happens to your skin when you lose weight rapidly?

Rapid weight loss, especially a sudden drop in weight over a short period, often negatively impacts skin health. What happens is that the amount of subcutaneous fat disappears faster than the skin can adjust, resulting in...

• Sagging skin (Laxity)
  Because our skin is like an elastic band, when we gain weight, the band expands. Later, if we lose weight suddenly but the tissue's elasticity is insufficient, the skin won't fully return to its original state, resulting in sagging or wrinkles.
• New wrinkles or patterns can form repeatedly.
  Especially in areas that have stretched and then rapidly contracted, collagen and elastin fibers may be further damaged, resulting in the appearance of new stretch marks or making existing ones more prominent.
• "Yo-yo skin" In reality, in medicine, there's no such thing as "yo-yo skin" like the term "yo-yo weight."
  However, in the beauty industry, when weight fluctuates rapidly, the skin often loses firmness. The skin's layers break down, losing their anchoring structure, resulting in a saggy, wavy, or wrinkled appearance, resembling a "skin bag," which some mistakenly understand as "yo-yo skin."

What happens to the skin when muscles expand rapidly?

• The skin must expand to accommodate the size of the muscles.
  If muscles grow rapidly, the skin will be suddenly stretched to match the perpendicular movement of the muscle.
• If the skin's structure (collagen/eastin) is not ready or not flexible enough.
  "Stretch marks" may occur. Stretch marks The same can happen in cases of weight gain, because the skin's supporting structure is stretched until it breaks or becomes brittle.
• Especially in certain areas where muscles grow rapidly.
  For example, on the shoulders, forearms, chest, or hips, stretch marks are commonly seen running parallel to the muscle expansion lines.

What happens to your skin if you gain weight quickly?

• Subcutaneous fat increases rapidly.
  The skin is pushed out and expands in areas with increased fat, such as the abdomen, thighs, hips, and buttocks.
• The process is similar to rapid muscle growth.
  If the skin's structure isn't flexible enough, or if there are certain underlying medical conditions (such as high cortisol levels), stretch marks can form easily.
• Besides stretch marks, stretch marks can also lead to rougher skin, thinner skin, or cellulite.