Final answer:
During the necrosis phase of Legg Calve Perthes disease, the child may experience pain in the affected hip and exhibit a limp while walking, with limited range of motion in the hip joint. Therefore, the correct option is 1.
Step-by-step explanation:
A 7-year-old kid may have pain during the necrosis phase of Legg-Calve-Perthes disease as a result of a weakened blood supply to the femoral head, which can result in bone death. During this stage, the hip joint deteriorates, causing symptoms including limping and trouble bearing weight on the afflicted leg.
At this point, the infant is not likely to be asymptomatic. To treat pain and track the course of an illness, proper diagnosis and treatment are essential. In order to assist the child's wellbeing and lessen the negative effects of Legg-Calve-Perthes disease on hip joint health, healthcare providers are essential.
Therefore, the correct option is 1.