Hyperpigmentation of the lower limbs with swelling and no pain may be caused by pregnancy, primary varicose veins of the lower limbs, primary deep venous insufficiency of the lower limbs, and so on.
1. Pregnancy: During pregnancy, the increase in estrogen secretion level can lead to an increase in melanocytes, resulting in hyperpigmentation of the lower extremities with mild swelling of the lower extremities, which generally does not require special treatment.
2. Primary varicose veins of the lower limbs: In primary varicose veins of the lower limbs, the lower limbs can have the manifestations of tortuous expansion of superficial veins, heaviness, swelling of the lower limbs, skin pigmentation, etc., which can be handled through conservative treatments (less standing and sitting, wearing elastic stockings) or surgical treatments (injection of sclerosing agents, ligation of veins in high position, and stripping) as per the doctor’s instructions.
3. Primary lower extremity deep vein valve insufficiency: due to deep vein valve abnormality, venous reflux, superficial varicose veins, lower extremity swelling, pigmentation, lower extremity ulcers, etc. The treatment is mainly through surgery (such as superficial femoral vein valvuloplasty, superficial femoral vein extraluminal valvuloplasty).
In addition, patients with cardiac insufficiency and renal insufficiency may also have edema in the lower leg area, but it is often accompanied by other conditions related to the heart and kidneys, so the cause needs to be identified and then treated symptomatically.
Pigmentation swelling of the lower limbs, need to go to the hospital in a timely manner to improve the relevant examination, clear cause, follow the doctor’s instructions standardized treatment, so as not to delay the condition.