What could be the reason for melon in pumpkin cracking open while on the plant?

Melons cracking open while still on the plant can occur due to rapid growth or fluctuations in moisture levels. When a melon absorbs too much water too quickly, the inner pressure can exceed the skin's ability to stretch, leading to cracks. Additionally, extreme temperature changes or inadequate pollination can weaken the fruit's structure, making it more susceptible to cracking. Proper watering practices and consistent environmental conditions can help minimize this issue.