
What are the symptoms of lupus erythematosus?
Recently, red patches have appeared on my arms in patches. A friend mentioned it might be lupus erythematosus. I would like to know what symptoms are associated with lupus erythematosus?

Lupus erythematosus is a chronic autoimmune disease with diverse symptoms that can affect multiple systems throughout the body. Typical symptoms include:
1. Skin and mucous membrane manifestations: Skin involvement is particularly prominent, such as butterfly-shaped rashes, red painful nodules on fingers and the palms or soles, skin ulcers, and possible accompanying mucosal ulcers.
2. Musculoskeletal symptoms: Patients may experience joint pain, limited mobility, muscle weakness, and other symptoms resembling rheumatic pain.
3. Fatigue and fever: Persistent fatigue and unexplained low-grade fever are common nonspecific symptoms.
4. Hematologic abnormalities: Anemia, leukopenia, thrombocytopenia, and other blood-related abnormalities.
5. Cardiopulmonary symptoms: Pericarditis, pleuritis, pulmonary hypertension, and other manifestations such as chest pain and shortness of breath.
6. Kidney damage: About 50% of patients develop kidney involvement, presenting with proteinuria, hematuria, and potentially progressing to renal failure in severe cases.
7. Neurological and psychiatric symptoms: Such as headaches, seizures, mental status changes, and, in severe cases, cerebrovascular lesions.
The occurrence and severity of these symptoms can vary among individuals due to differences in individual constitution. If you have any concerns, please seek medical attention promptly.