Which statement is true regarding genu varum (bowleg) -a) In infants, it may be considered normalb) Occurs due to epiphyseal dysplasiac) Seldom associated with tibial angulationd) Affects only tibia but nerve femure) Does not require any treatment

**Core Concept**
Genu varum, also known as bowleg, is a condition characterized by an abnormal outward bowing of the legs, typically affecting the lower thigh area. This condition is often associated with abnormalities in bone growth and development, particularly in the tibia and femur.

**Why the Correct Answer is Right**
Genu varum in infants is often considered a normal variant, as the legs may appear bowed due to the way the bones are growing. However, this condition can also be a sign of underlying bone or joint abnormalities, such as epiphyseal dysplasia. Epiphyseal dysplasia is a rare genetic disorder that affects the growth plates of bones, leading to abnormal bone formation and development. In some cases, genu varum may be associated with tibial angulation, which can be a result of uneven growth or other underlying conditions.

**Why Each Wrong Option is Incorrect**
* **Option B:** Epiphyseal dysplasia is a rare genetic disorder that can cause genu varum, but it is not the most common cause of this condition in infants. While epiphyseal dysplasia can lead to genu varum, it is not the primary association.
* **Option C:** Genu varum is often associated with tibial angulation, particularly in cases of underlying bone or joint abnormalities. This condition can be a result of uneven growth or other underlying conditions.
* **Option D:** Genu varum can affect both the tibia and femur, as the condition is often associated with abnormalities in bone growth and development in these areas. While the tibia is often more affected, the femur can also be involved in some cases.
* **Option E:** Genu varum may not require treatment in all cases, particularly if it is a normal variant in infants. However, some cases may require treatment, such as bracing or surgery, to correct the abnormality and prevent further complications.

**Clinical Pearl / High-Yield Fact**
Genu varum in infants is often considered a normal variant, but it can also be a sign of underlying bone or joint abnormalities. It is essential to monitor the condition and consult with a pediatrician or orthopedic specialist if there are concerns about the child's bone growth and development.

**Correct Answer: A. In infants, it may be considered normal.**