Beware these 3 unexpected injuries that can strike marathon runners one is a doozy

It’s easy to run into trouble in a marathon — you could hit the wall, suffer heat exhaustion, chafe your nipples and even poop yourself over the course of 26.2 miles.The road to recovery begins as soon as you hit that finish chute, collect your medal and take your selfies.Some problems are easy to identify — blisters, black toenails, bumps and scrapes.Others are more subtle, living deep within tissue and manifesting as a vague ache or dull pain.Your feet do much of the heavy lifting during a marathon, so they’re particularly vulnerable to injuries you don’t see coming.Ahead of Sunday’s TCS New York City Marathon, two podiatrists talked to The Post about the unexpected foot issues that can trip up even seasoned marathon runners — and the best ways to get back on track.You’ve probably never heard of the sesamoid bone, which is so small that it gets its name from the Greek word for “sesame seed.”There are two pea-shaped sesamoid bones under each big toe.

They help the boss toe push off the ground while walking and running.“Sesamoid injuries are uncommon in the general population but seen on a fairly regular basis with runners,” Dr.Jeffrey Baker, a Balance Health podiatrist at Weil Foot & Ankle Institute in Chicago, told The Post.Runners with high arches face a higher risk of sesamoid injuries because their rigid feet do not flatten enough to absorb the impact of running.Instead of spreading pressure across the entire foot, high arches concentrate weight on the heel and the ball of the foot.“Those that are forefoot strikers during running or have tight calf muscles are at increased risk as well,” Baker said.A stress fracture of the sesamoid typically means four to six weeks in a walking boot.If it’s just inflammation without a fracture, a condition known as sesamoiditis, the treatment is ice, oral anti-inflammatory medication, no bare feet and a temporary switch to low-impact cross-training.“The cuboid is a square-shaped bone that c...