24 yr old woman walking up experiences pain in heel which decreases on walking down. X-ray shows bone spur. Diagnosis ?

Ans. is 'd' i.e., Achillis tendinitis Heel pain when walking up hill or up stairs is typical of Achillis tendinitis. Other three options can also cause heel pain, but pain in these conditions has no relation to going up or down. It is consitent throughout.