What is lupus?
Lupus (systemic lupus erythematosus, SLE) is an autoimmune disease that can affect skin, joints, kidneys, heart and lungs. Common symptoms include joint pain, a butterfly rash, fatigue and sun sensitivity. Hydroxychloroquine is the mainstay of treatment.
Last updated 2026-07-01. This is general information, not a substitute for personalised medical advice.
Frequently asked questions
Is lupus a form of arthritis?
Lupus isn't classed as arthritis but it commonly causes joint pain and stiffness. Many people are managed by the same rheumatology teams that treat rheumatoid arthritis.
Can lupus be cured?
There is no cure, but modern treatments — particularly hydroxychloroquine — control symptoms and reduce flares for most people. Many achieve long periods of remission.
What is the butterfly rash?
A flat or slightly raised red rash across the cheeks and bridge of the nose, in the shape of a butterfly. It is one of the most recognisable signs of lupus, though not everyone develops it.
Why is sun protection so important with lupus?
UV light can trigger lupus flares — both skin rashes and internal symptoms. Daily SPF 50, UV-protective clothing and hats are essential, even on cloudy UK days.
Can people with lupus have children?
Yes. Pregnancy in lupus needs to be planned with your rheumatology and obstetric team, ideally during a period of stable disease, with medications reviewed in advance.