Duodenal Ulcer S1 Stage: What Does It Mean?

When a duodenal ulcer is classified as stage S1, it means the ulcer has mostly healed, with approximately 90% recovery achieved. At this stage, the wound is nearly fully healed, and only a short time is needed for complete recovery. The letter "S" stands for "scar," indicating the scar phase of the ulcer healing process. In the S1 stage, the ulcer surface is covered with a red scar, which is why this phase is also referred to as the red scar phase.

Understanding Duodenal Ulcer Staging

The healing process of a duodenal ulcer is typically divided into three main stages, each representing a different phase in the recovery timeline:

1. A Phase – Active Phase

This phase indicates that the ulcer is still active and ongoing. It is further categorized into two sub-stages: A1 and A2. During this period, symptoms may be more pronounced, and medical treatment is crucial to prevent complications.

2. H Phase – Healing Phase

The H phase represents the healing process of the ulcer. It is divided into H1 and H2 stages. In this phase, the ulcer begins to close, and the body starts forming protective tissue over the affected area. Proper medical care and lifestyle changes are essential to support the healing process.

3. S Phase – Scar Phase

This phase indicates that the ulcer has healed significantly and is now in the scarring stage. It is further divided into S1 and S2:

• S1: Characterized by the presence of a fresh, red scar on the ulcer site. Healing is nearly complete, with only minor tissue remodeling remaining.
• S2: Involves the formation of a white or mature scar, indicating full structural healing of the ulcer.

In summary, being diagnosed with a duodenal ulcer in the S1 stage is a positive sign, suggesting that the condition is well on its way to complete recovery. However, continued medical follow-up and adherence to prescribed treatments remain important to ensure long-term digestive health.