Lymphatic diseases cover any disorder that impairs lymph-vessel drainage or nodal function. The most common manifestation is lymphedema—chronic swelling of body tissues—but other signs vary with cause (infection, tumours, trauma, malformation). Typical features include: Pitting or non-pitting swellingProtein-rich fluid collects in the sub-cutis, producing enlargement of the limb, face, genitals or trunk; early swelling pits with pressure, later becomes hard and non-pitting . Heaviness and tightnessPatients describe a constant “weight” or bursting sensation in the affected part, worse toward evening and relieved only by elevation or compression. Reduced range of motionSwelling around joints limits flexion and walking; long-standing disease leads... Learn more