How shin periostitis starts
Shin periostitis often starts as pain along a band of the shin that shows up at the start or during activity and at first settles with rest. Over time it may appear earlier, linger longer after and make you unconsciously shorten your stride or change how you step to protect the area. Many people notice tenderness to touch, more discomfort on hills, stairs or hard surfaces and quicker calf fatigue than before.
When gait changes, other areas can get overloaded such as the foot, knee, hip or lower back. That is why the path is not only reducing mileage but organizing weekly stress better, improving strength and control and returning gradually at a pace that does not cause a next day flare-up. If pain appears even at rest, spikes suddenly or makes short walks difficult you should seek medical assessment.