After finishing burying needle and thread carving, why can't thread be absorbed

The current PPDO wire is a CFDA-approved wire, essentially protein wire, used in surgical sutures, as well as heart surgery. The thread is characterized by its absorbability and can be completely broken down into carbon dioxide and water in the human body, generally within 1-2 years. If you find that the wire does not absorb for a long time, you may have used false wire. The embedding line lifting is to inject the embedding line into the subcutaneous tissue. The injected PPDO line will combine with subcutaneous ACMETEA to slowly stimulate the growth of granulation tissue. The embedding absorbable degradation line will stimulate the proliferation of collagen in the skin to generate new collagen fibers and improve the skin firmness. So, why do some people finish line carving will appear stiff, skin sag and other side effects? Therefore, do line carving to understand the following points:
1. Choose regular medical institutions and experienced physicians as well as qualified wires. This is the basic guarantee of doing line carving facial lift.
2. Avoid taking collagen (embedding itself activates collagen production, plus oral administration will cause imbalance degeneration and rapid apoptosis of new tissues)
3. Female friends should avoid menstruation, pregnancy and lactation. Please do not take drugs containing aspirin within two weeks before surgery, because aspirin will reduce the function of platelet coagulation.