DR. CHU-CHUN LIANG← Vascular tips

The 6 stages of varicose veins

靜脈曲張六個階段:蜘蛛網狀血管、曲張、水腫、皮膚變化及潰瘍示意圖
C1 · Spider or reticular veins
C2 · Varicose veins
C3 · Edema
C4 · Skin changes
C5 · Healed venous ulcer
C6 · Active venous ulcer
The 6 stages of varicose veins | Original medical illustration

ENGLISH

CEAP is a shared clinical language for describing chronic venous disease. C1 begins with spider or reticular veins, while C6 represents an active venous ulcer.

The stage does not decide treatment by itself. Symptoms, ultrasound findings and impact on daily life should be considered together.

  • C1 spider or reticular veins
  • C2 varicose veins
  • C3 edema
  • C4 skin changes
  • C5 healed venous ulcer
  • C6 active venous ulcer

1.C1–C2: visible vein changes

  • C1: small spider or reticular veins.
  • C2: enlarged, twisted, prominent subcutaneous veins.
  • Visible appearance and symptom severity do not always match.

2.C3–C4: swelling and skin changes

  • C3: ankle or lower-leg edema, often worse later in the day.
  • C4: pigmentation, eczema, induration or skin atrophy.
  • Earlier assessment is advisable when skin changes appear.

3.C5–C6: venous ulcers

  • C5: a previous venous ulcer that has healed.
  • C6: a current active venous ulcer.
  • Wound care and underlying venous hypertension both need attention.

💡 CEAP C1–C6 at a glance

StageMain findingSuggested step
C1Spider or reticular veinsDiscuss appearance and symptoms
C2Varicose veinsConsider ultrasound
C3EdemaAssess venous and other causes
C4Pigmentation, eczema or indurationSeek earlier treatment advice
C5Healed venous ulcerPrevent recurrence
C6Active venous ulcerTreat the wound and venous disease

Note: C4 skin changes, a healed C5 ulcer or an active C6 ulcer deserves vascular and wound assessment.

References

  1. De Maeseneer MG, et al. ESVS 2022 Clinical Practice Guidelines. Eur J Vasc Endovasc Surg. 2022;63:184–267. View source

This article is for health education only and does not replace individual medical assessment. Seek urgent care for acute symptoms.

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