Why do I feel pain in the concave areas on both sides of my buttocks?

If you experience soreness or pain in the concave areas on both sides of your buttocks, you should pay attention to it. This area belongs to the joints and is a relatively natural physiological structure of the human body. If soreness or pain occurs, you should first consider whether there is a neurological lesion. In addition, muscle fascial lesions may also cause such symptoms. This includes infectious arthritis, degenerative arthritis, etc., which require timely and good diagnosis.

The differential diagnosis for hip pain includes:

Arthritis, capsulitis, musculofascial pain syndrome, neuropathy, and other conditions.

Osteoarthritis (OA)

As the name suggests, degenerative arthritis is a degenerative disease of the joints after long-term use. Degeneration of the hip joint is one of the common diseases among the elderly. Patients often feel sore hips after exercise, especially when lifting heavy objects, and the symptoms usually improve after rest. Patients with more severe symptoms will feel soreness even when resting, and this symptom is particularly severe at night.

Infectious arthritis (infectiousarthritis).

It is an inflammatory response caused by bacterial infection. The most common pathogen is Staphylococcus aureus, which enters the joint cavity through the blood circulation. Patients usually have a fever, severe hip pain, and sometimes no joint swelling or redness. On physical examination, patients are able to do only slight flexion and are usually unable to tolerate any type of movement. Once the diagnosis is established, the patient should be hospitalized immediately and given intravenous antibiotics. X-rays should be taken as soon as possible, and an orthopedic specialist should be consulted. If necessary, surgical intervention should be performed as soon as possible to remove the suppurative area to avoid permanent damage to the joint.

Inflammatory arthritis (inflammatory arthritis).

It is caused by an immune rheumatic disease. Patients usually complain of stiff joints when waking up in the morning, but the symptoms usually subside after a few hours of activity. The two most common diseases in this area include rheumatoid arthritis (RA) and ankylosing spondylitis (AS). The easiest way to tell the difference is to take an X-ray. Ankylosing spondylitis will show typical sacroilitis in this area, while rheumatoid arthritis will not have such changes. If the diagnosis is established, consultation or referral to an appropriate immuno-rheumatologist should be sought.

Capsulitis.

The joint capsule is a protective pad used for cushioning and lubrication, reducing direct wear on the joints from external forces. There are eighteen joint capsules in this area, and three are the most commonly inflamed. Includes the greater trochanteric joint capsule, enterolumbar joint capsule, and sciatic joint capsule. During the physical examination, different joint capsules can be tested. If there is severe pain, the diagnosis can be confirmed. X-ray examinations usually cannot show images of soft tissue inflammation, so they are not necessary.