Question: What is (are) Freiberg's disease ?
Answer: Freiberg's disease is rare condition that primarily affects the second or third metatarsal (the long bones of the foot). Although people of all ages can be affected by this condition, Freiberg's disease is most commonly diagnosed during adolescence through the second decade of life. Common signs and symptoms include pain and stiffness in the front of the foot, which often leads to a limp. Affected people may also experience swelling, limited range of motion, and tenderness of the affected foot. Symptoms are generally triggered by weight-bearing activities, including walking. The exact underlying cause of Freiberg's disease is currently unknown. Treatment depends on many factors, including the severity of condition; the signs and symptoms present; and the age of the patient.
Source: GARD

Question: What are the symptoms of Freiberg's disease ?
Answer: What are the signs and symptoms of Freiberg's disease? Common signs and symptoms of Freiberg's disease include pain and stiffness in the front of the foot, which often leads to a limp. People with this condition may also experience swelling, limited range of motion, and tenderness of the affected foot. Some people describe the sensation of walking on something hard, like a stone or a marble. Symptoms are generally triggered by weight-bearing activities, including walking. Occasionally, people with Freiberg's disease have no obvious symptoms of the condition, with changes noted only on X-rays taken for other purposes. Whether these people will later develop symptoms is not known.
Source: GARD

Question: How to diagnose Freiberg's disease ?
Answer: How is Freiberg's disease diagnosed? A diagnosis of Freiberg's disease is often suspected based on the presence of characteristic signs and symptoms. An X-ray, magnetic resonance imaging (MRI), and/or bone scan can then be ordered to confirm the diagnosis. Other testing such as laboratory studies may also be recommended to rule out other conditions that cause similar features.
Source: GARD