More Thread lift threads = better results? The paradox revealed in 1,500 patients

More is not always better. An analysis of 1,500 patients at a Japanese clinic revealed a counterintuitive finding: patients who received more Thread lift threads were more likely to feel the effect was insufficient and return for re-treatment.[1]When choosing a set, look not at the maximum number of threads, but at whether it matches your age and degree of Sagging (skin laxity).[1].

What is the basis for determining the number of threads in a set?

Unfortunately, there is no established standard. Research on combined use of Thread lift and ultrasound explicitly states that guidelines showing how many threads are optimal for each indication are lacking in the current literature.[2]In other words, the number of threads in a set is not determined by research but assembled by each facility.[2]That is why it is worthwhile to ask for an explanation of why this particular number was chosen.

What happened when the number exceeded 10 threads?

The data showed a trend toward lower satisfaction. A multi-facility retrospective analysis of patient dissatisfaction after PDO Thread lift found that among 1,500 patients, both age and number of threads were independent predictive factors for dissatisfaction.[1]Dissatisfaction here refers to returning for re-treatment because the effect felt insufficient.[1]The threshold values derived were age 43 and 10 threads, with an odds ratio of 1.09 per additional thread (95% confidence interval 1.03–1.16).[1].

This number does not mean 'failure if you exceed 10 threads.' Rather, it suggests that as more threads are added, expectations rise proportionally, and incompleteness becomes more apparent—a relationship of modest strength.[1].

Have studies been conducted on increasing the number of threads?

Yes. A randomized controlled trial has been reported comparing how the number of PDO threads affects facial lifting.[3]It is one of the few trials to directly address the question, 'Is more always better?'[3]The findings support the view that the relationship between thread count and effect may not be simply proportional.[3].

What combinations are actually used in practice?

Mixed-material approaches are most common. A compilation of 111,948 procedures performed at over 100 clinics from 2020 to 2024 identified 7 combinations of techniques, with PDO and PCL thread combinations being the most frequently used.[4]The same compilation also reported that the median patient age in these procedures has increased year over year.[4]Because the content of the term 'set' varies by facility, it is most reliable to ask for a breakdown of materials and thread count.

The review's conclusion is that the outcome is determined not by the thread material itself but by how the patient chooses and how the treatment plan is formulated.[5]It is natural to ask about thread count as part of that planning.

What to confirm during consultation about thread count

There are three key questions: How many threads of what material will be placed where? What aspect of your Sagging (skin laxity) did the doctor observe to determine this number? How would the outlook change if the number were reduced or increased?

The age of 43 is merely a statistical threshold. Whether you fall on either side of that line should be determined by having your doctor examine your degree of Sagging (skin laxity) and skin condition.