<unk>  is an abnormal collection of fluid in interstitial space because of increased hydrostatic pressure, decreased oncotic pressure, increased capillary permeability, and obstruction in lymphatic drainage.<unk>  may be  due to underlying systemic diseases such as nephrotic syndrome, right sided heart failure, hypothyroidism, hyperthyroidism, side<unk> ffect of some drugs, complications of recent surgery and malignancy.<unk>  may be generalized due to cardiac, thyroid, kidney diseases or localized due to cellulitis, deep vein thrombosis (DVT), chronic venous insufficiency and lymphedema. Diagnosis is based on taking history of recent surgery, trauma, systemic illness, malignancy and  doing physical<unk> xamination about the distribution of<unk>  and determination of pitting or non pitting<unk> , inducing  pain on palpation. Duplex sonography is helpful for finding the<unk> vidence of DVT. For more investigation about localized<unk>  with unknown<unk> tiology, abdominal computer tomography, magnetic resonance venography maybe required.
Edema
Scar
Myxedema
Erythema
Dry skin
Clubbing
Leg swelling
Stasis 