Lupus

Also called Systemic lupus erythematosus or SLE

Lupus (systemic lupus erythematosus, SLE) is a long-term condition where the immune system attacks healthy tissue. It can affect the joints, skin, kidneys, blood and other organs. It is much more common in women and often starts between the ages of 15 and 45. Symptoms tend to flare up and settle down.

Last updated Nov 9, 2026

What it is

Most people with lupus live a normal lifespan with treatment, but some develop serious complications, such as kidney problems.

Hydroxychloroquine, steroids and other medicines that calm the immune system help control it. Sun protection is important.

Common signs

  • Joint and muscle pain
  • Extreme tiredness
  • A rash, often across the cheeks and nose
  • Sensitivity to sunlight
  • Mouth ulcers
  • Hair loss
  • Fever

How it is usually diagnosed

  • Blood tests, including ANA and anti-dsDNA
  • Urine tests
  • Other tests depending on the organs affected

Records worth keeping

Keeping these together makes each appointment easier, especially when you see a new doctor:

  • Antibody and complement results
  • Blood counts and kidney function over time
  • Urine test results
  • Rheumatology letters and a list of medicines

Questions to ask your doctor

  • Which organs are affected?
  • What should I do during a flare?
  • How often do I need eye checks on hydroxychloroquine?

When to get help right away

Call 112 or go to the nearest emergency department if you have:

  • Chest pain, severe breathlessness, seizures, or sudden swelling with much less pee: call 112

This page is general information. It is not a diagnosis and does not replace a doctor who knows your history. Medfold keeps your records organised; it does not interpret them.

Sources