Hip pain is the sensation of discomfort in or around the hip joint, where the upper end (head) of the thigh bone (femur) fits into the socket of the hip bone.
Anatomy of the Hip
One of the body's largest weight-bearing joints, the hip is where the thigh bone meets the pelvis to form a ball-and-socket joint. The hip joint consists of two main parts :
Femoral head : a ball-shaped piece of bone located at the top of your thigh bone, or femur.
Acetabulum : a socket in your pelvis into which the femoral head fits.
The hip is surrounded by large muscles that support the joint and enable movement.
They include :
Gluteals : muscles of the buttocks, located on the back of the hip.
Adductor muscles : muscles of the inner thigh, which pull the leg inward toward the opposite leg.
Iliopsoas muscle : a muscle that begins in the lower back and connects to the upper femur.
Quadriceps : four muscles on the front of the thigh that run from the hip to the knee.
Hamstrings : muscles on the back of the thigh, which run from the hip to just below the knee.
Major nerves and blood vessels also run through the hip. These include the sciatic nerve at the back of the hip and femoral nerve at the front of the hip, and the femoral artery, which begins in the pelvis and passes by the front of the hip and down the thigh.
Hip pain may be caused by arthritis, injuries or other problems such as Pinched nerves or cancer
Depending on the condition that's causing your hip pain, you might feel the discomfort in your :
Thigh, Inside of the Hip Joint, Groin, Outside of the Hip Joint, Buttocks.
Sometimes pain from other areas of the body, such as the back or groin can radiate to the hip.
You might notice that your pain gets worse with activity, especially if it's caused by arthritis. Along with the pain, you might have reduced range of motion. Some people develop a limp from persistent hip pain.