Right leg femoral pain

The pain in the femoral head of the right leg is mainly related to trauma, such as chronic strain, bacterial infection, invasion of joints, allergic reactions and autoimmune problems. These are the main causes of trauma. In normal times, it is necessary to find the causes of the disease first and receive reasonable treatment according to the causes of the disease. This is very important. Do not delay the disease, because the condition will worsen if delayed.

Causes of symptoms

1. Trauma

1. Acute injury: due to external force colliding with the joint or causing the joint to overstretch and twist, the joint bones, muscles, ligaments and other structures are damaged, resulting in joint dislocation or fracture, blood vessel rupture and bleeding, tissue fluid exudation, and joint swelling and pain.

2. Chronic injury: Continuous chronic mechanical injury, or damage to the joint surface after acute trauma leaving rough scars, which causes the joint lubrication function to disappear, and long-term friction on the joint surface causes chronic injury. Long-term weight-bearing on the joints causes damage to the articular cartilage and articular surfaces. Excessive joint movement can cause cumulative damage to the articular cartilage. Improper treatment of joint sprains or poor fracture healing, or abnormal healing can lead to unbalanced load and cause chronic joint damage.

2. Infectious bacteria directly invade the joint

For example, bacteria invade the joints after trauma; bacteria reach the joints through the blood during sepsis; osteomyelitis, soft tissue inflammation, and abscesses adjacent to the joints spread into the joints; poor disinfection during joint puncture or introduction of bacteria from outside the joint into the joint. Common pathogens include Staphylococcus aureus, Streptococcus pneumoniae, meningococcus, Mycobacterium tuberculosis and Treponema pallidum.

3. Allergic reactions and autoimmunity

Pathogenic microorganisms and their products, drugs, xenogeneic sera and antibodies in the blood form immune complexes, which flow through the joints and are deposited in the joint cavity, causing tissue damage and joint lesions. Such as rheumatoid arthritis, bacillary dysentery, allergic purpura and reactive arthritis after tuberculosis infection. For example, foreign antigens or physical and chemical factors change the composition of host tissues, forming autoantigens that stimulate the body to produce autoantibodies, causing organ and non-organ specific autoimmune diseases. Joint disease is a type of systemic damage, manifested by synovial congestion and edema, progressive cartilage destruction, and deformity formation, such as joint disease caused by rheumatoid arthritis and systemic lupus erythematosus.

4. Degenerative joint disease

Also known as proliferative arthritis or hypertrophic arthritis. It is divided into primary and secondary types. The primary one has no obvious local cause and is more common in obese elderly people and women. There is a family history and multiple joints are often affected. Secondary bone and joint diseases are often caused by underlying diseases such as trauma, infection or congenital malformations, and are related to smoking, obesity and heavy physical labor. Pathological changes include degeneration and thinning of articular cartilage, atrophy and fragmentation and necrosis of chondrocytes, sclerosis of subchondral tissue, sparse cystic changes of trabeculae, formation of osteophytes at the edges of bone joints, and congestion and edema of synovium.

5. Metabolic bone disease

Osteomalacia and osteoarthritis caused by impaired vitamin D metabolism, such as insufficient sunlight exposure, indigestion, vitamin D deficiency, and insufficient phosphorus intake. Osteoporotic joint disease caused by various causes, such as senile and disuse osteoporosis; hyperlipidemic joint disease caused by lipid metabolism disorders, arthritis caused by lipoprotein transport metabolism disorders in periosteum and joint cavity tissues; gout caused by purine metabolism disorders; and certain metabolic endocrine diseases such as diabetic bone disease; hypercortisolism bone disease; and osteoarthritis caused by thyroid or parathyroid diseases can all cause joint pain.