Anti SS-A (Ro)Antibody

A positive SSA (Ro) antibody indicates the immune system makes autoantibodies associated with autoimmune diseases, most commonly Sjögren’s syndrome and systemic lupus erythematosus. It can signal higher risk of skin/photosensitive rashes and, in pregnancy, neonatal lupus or congenital heart block. It’s not diagnostic alone—requires clinical correlation, additional testing, and rheumatology or obstetric follow-up if relevant.

Anti-Ro (SSA) antibodies are autoantibodies against Ro/SSA proteins (Ro52 and Ro60) found in many people with Sjögren’s syndrome. Their presence supports diagnosis and is linked to more systemic or extraglandular features, including skin and lung involvement. In pregnancy they increase the risk of neonatal lupus and congenital heart block. Testing helps guide monitoring and management.

Yes. A minority of people with clinical lupus can be ANA‑negative yet test positive for specific autoantibodies such as anti‑Ro/SSA or antiphospholipid antibodies. ANA is highly sensitive but not 100% — targeted testing is recommended when symptoms or clinical suspicion persist, because anti‑Ro and antiphospholipid antibodies carry diagnostic and management implications (e.g., photosensitivity, neonatal lupus, thrombosis).

SS‑A (anti‑Ro) and SS‑B (anti‑La) are autoantibodies against intracellular ribonucleoproteins. They commonly occur in Sjögren’s syndrome and systemic lupus erythematosus and help support diagnosis. Anti‑Ro is associated with photosensitivity and neonatal lupus with congenital heart block; anti‑La often co-occurs with anti‑Ro and reflects B‑cell–driven autoimmunity. Presence alone isn’t definitive and is interpreted with clinical findings.

A high anti‑SSA (anti‑Ro) indicates the immune system is producing antibodies commonly seen with Sjögren’s syndrome and related autoimmune conditions. It supports diagnosis and is associated with greater likelihood of glandular dryness and systemic involvement (skin, lungs, joints). In pregnancy it raises risk of neonatal lupus/congenital heart block. Some people are antibody‑positive without severe symptoms; specialist follow‑up and monitoring are advised.

O positive (O+) is a common blood group meaning red blood cells lack A and B antigens but carry the Rh (D) antigen. People with O+ can generally donate red blood cells to any Rh‑positive group (A+, B+, AB+, O+) and usually receive blood from O+ or O− donors. Knowing your type matters for transfusions, pregnancy and organ donation.