Picture this: you're in the middle of a set of sit-ups, getting in a great ab workout, and then you feel and hear a "pop" come from your hips. Not only does it sound concerning, but it feels like something moved in your hip! There are four possible hip problems that could be causing that "pop," some of which are worrisome and some that aren't.
It's important to learn what could be going on in your hip when you hear a "pop" so that you know whether or not you can keep going through your workout. The first indication that you might be injured is that there is pain in your hip. The first three conditions below are injuries and are usually accompanied by pain. The last condition isn't painful and is actually the most common of all four problems.
If you feel pain you might have one of the following problems:
Adult Hip Dysplasia
According to Washington University's Orthopedics Department, hip dysplasia is caused by a shallow hip socket. If your hip socket is shallow it means that the head of your femur, the bone that attaches to the hip, is more likely to slip around in the joint and damage the rim of the hip socket. This can lead to pain, a popping sound, dislocation and even arthritis over time.
To diagnose hip dysplasia, a doctor will need to perform a physical examination and take x-rays. They may even need to take a magnetic resonance arththrogram (MRA) or computed tomography (CT) scan.
Hip dysplasia is usually corrected with surgery to the hip joint. It's important to note that hip dysplasia is usually diagnosed and treated in children, so it is rare that an adult will be suffering from this.
Hip Labral Tear
The labrum of your hip is a rim of soft tissue that deepens the groove that your femur sits in to make the hip more secure. Hip labral tears are tricky because you might not have any pain. You might simply feel a clicking or catching sensation. They are usually caused by too much strain on the hip from something like an intense sporting event.
In order to find out if you have a hip labral tear you will need an MRI. Treatment depends on the severity of the injury. Your doctor may suggest rest, anesthesia, therapy, or surgery if you have this injury.
Femoral Acetabular Impingement
Femoral acetabular impingement, or FAI for short, is caused by either an abnormally shaped femoral head or an abnormally shaped hip socket. If either of these bones are misshapen, it will limit the motion of the hip joint and cause it to move around erratically. This problem is most common in athletes who are using their hip joint very often and putting a lot of pressure on it.
When the hip joint is moving around in a strange way it causes pressure on other parts of the hip joint, specifically the labrum of the hip, according to the Rothman Institute in Philadelphia. Symptoms of FAI will begin with pain on the front of the groin, along with a popping or catching feeling in the hip.
Over time the pressure in the hip joint can wear down the labrum of the hip and cause a labral tear. To diagnose this condition, the doctor will perform a physical evaluation and may request an x-ray or MRI of the hip. To treat FAI the doctor will either suggest therapy or surgery.
If you feel a popping sound coming from your hips but you don't feel pain, you are most likely experiencing this syndrome:
Hip Snapping Syndrome
While this problem is usually painless, it can be very annoying and worrisome. If you are hearing a popping, snapping or clicking sound in your hips while performing sit-ups but you don't feel pain, this is the most likely culprit.
The hip joint has a lot of muscles, tendons, ligaments, and other soft tissue around it. Tendons and ligaments can get trapped on parts of your hip and leg bones while you move. When they snap back into place you will hear a loud snapping or popping sound. This is not dangerous and, as long as it isn't painful, is nothing to worry about.