Foot problems may appear simple but they should never be ignored as they can often become very serious. In most cases, foot conditions are caused by simple factors which can be easily identified with standard diagnostic procedures. However, there can also be cases which are rather difficult to diagnose or comprehend and such issues may also cause considerable pain and discomfort to the patient. Such rare foot disorders must be treated with extra attention so that they can be resolved at the earliest possible instance. A rare foot disorder can be described as any kind of lower limb condition that is difficult to understand. In many instances, the foot problem may exhibit symptoms that can be confused or mixed up with some of the other more common types of foot problems. Over the years, numerous types of unusual conditions affecting lower limbs have been found that cause mobility issues, pain and in some cases even deformities. Among them, three specific disorders deserve special mention, namely Freiberg's disease, Kohler's disease and Maffucci syndrome. In spite of their names, the conditions are not normally what one may consider a kind of disease. All these three conditions can be described as bone-related problems mostly affecting children and teenagers. The conditions are not contagious or inherited but they can significantly damage a child's ability to move around. Therefore it is necessary to get them detected and diagnosed at the earliest possible instance. He