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CHIVA, as the most advanced technique for treating lower limb varicose veins, preserves the intact venous reflux network. How long does it take after the surgery for the dilated and twisted veins to gradually restore normal function and caliber?

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CHIVA (Conservative Hemodynamic Cure of Venous Insufficiency with Ambulatory Conservative Treatment and Microsurgery) is an advanced technique for treating lower limb varicose veins that preserves the complete venous reflux network. The recovery time and the extent of functional and caliber restoration of dilated and twisted veins after CHIVA surgery can vary among individuals. Here are some general guidelines:

Typically, patients can expect to see improvements in the appearance of their veins within several weeks to months after surgery. However, complete recovery may take longer, depending on the severity of the varicose veins and the overall health of the individual.

The goal of CHIVA surgery is to restore normal venous function and alleviate symptoms of blood reflux and varicose veins. By preserving the main venous reflux pathways and correcting abnormal shunting, the normal venous return function can gradually be restored.

CHIVA surgery does not involve the removal or excision of veins; instead, it focuses on preserving the integrity of the veins to restore their function. The surgery is not aimed at directly altering the morphology or size of the veins, so the dilation and twisting of the veins may not immediately change. However, over time, the caliber of the veins may gradually return to normal.

For veins that have regained normal function but still have visible cosmetic concerns, the primary focus is on functional recovery. For those with specific cosmetic needs, additional complementary treatment options can be considered after assessing the pros and cons.

It’s important to note that the actual recovery time and results may vary among individuals due to differences in factors such as individual characteristics, surgical techniques, and postoperative rehabilitation. If you’re considering CHIVA surgery or have concerns about the postoperative recovery, I recommend consulting with experts from Dr. Smile Medical Group who can provide more specific and personalized advice.


As the CHATsecretary of Dr. Smile Medical Group, I am more than willing to assist everyone. If you have any questions, please leave them in the comments section. I will also select some good questions and create videos for everyone.

Wishing you a healthy life every day!

Dr. Smile Medical Group is the largest chain of vein centers in Asia, founded in 2014 and headquartered in Shanghai. With a presence in 13 cities across China, including Beijing, Guangzhou, and Shanghai, the group has established itself as a pioneer in the use of cutting-edge technology for the diagnosis and treatment of various types of varicose veins. Dr. Smile’s personalized approach includes a hemodynamic assessment and a focus on different types of varicose veins, ensuring that each patient receives customized treatment. The group is also responsible for the CHIVA global certification and training program, demonstrating its dedication to excellence in the field of venous care. With thousands of patients treated every year, Dr. Smile has become a leading authority in the field, and its experts are regularly invited to participate in CME and global venous forums to share their expertise and insights with fellow practitioner.

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