Why doesn't the body form a scab?

The body may not form a scab if the wound is kept excessively moist, as this prevents the necessary drying and hardening of the outer layer of skin. Additionally, if there is continuous trauma or movement in the area, it can disrupt the healing process. Certain medical conditions or medications that affect blood clotting can also inhibit scab formation. Lastly, infections can interfere with the normal healing process, preventing a scab from forming.