Final answer:
Pressure on the skin from staying in the same position can lead to the development of bedsores, also known as decubitis ulcers, and stretch marks due to rapid growth.
Step-by-step explanation:
When a person stays in the same position all the time, pressure causes the skin to develop bedsores or decubitis ulcers. These sores arise from the constant, unrelieved pressure on specific parts of the body, typically where bones are close to the skin's surface, leading to reduced blood flow and tissue necrosis.
Bedsores are particularly common among the elderly or those with conditions that lead to reduced mobility. To prevent them, healthcare providers frequently reposition patients to relieve pressure. Stretch marks are another form of skin change caused by pressure, often due to rapid growth such as during puberty or pregnancy.