Early diagnosis of lymphedema is difficult because there aren't many obvious signs, and it can sometimes mimic chronic venous insufficiency, or CVI, where blood collects in the veins.

淋巴水肿的早期诊断较为困难，原因是该病并没有很多明显的体征，并有时可能会与慢性静脉功能不全（CVI）相混淆。