Stress fractures.
Stress fractures, well-known occurrences in military recruits, also occur in civilians. There is a gradual alteration of the bone resulting from repeated unaccustomed stresses. Pain usually precedes positive x-rays by one to two weeks. Serial films are therefore required. Differential diagnosis can be a problem but treatment is simple. Femoral neck stress fractures can become complicated.
D005360:Fibula / Q000000981:diagnostic imaging; D005528:Foot / Q000000981:diagnostic imaging; D005598:Fractures, Spontaneous / Q000000981:diagnostic imaging / Q000209:etiology* / Q000628:therapy; D006801:Humans; D008684:Metatarsus / Q000000981:diagnostic imaging; D011630:Pubic Bone / Q000000981:diagnostic imaging; D011859:Radiography; D013312:Stress, Physiological / Q000150:complications*; D013978:Tibial Fractures / Q000000981:diagnostic imaging