Related Experiment Video
Updated: May 15, 2025

Human Subcutaneous Adipose Tissue Sampling Using a Mini-Liposuction Technique
Published on: September 27, 2021
Does Aspirin Increase Risk of Bleeding in Patients Undergoing Skin Lesion Excision: A Systematic Review and
Karl A Romain1, David Zargaran2, Alexander Zargaran3
1From the Department of Plastic and Reconstructive Surgery, Chelsea & Westminster Hospital NHS Trust, London, United Kingdom.
Background:
Aspirin is a commonly prescribed medication, which impairs the action of platelets. This also results in a higher risk of bleeding. Cutaneous lesion excision is frequently performed for diagnosis and treatment of malignancies, as well as for aesthetic or functional benefits. We must balance the risk of bleeding against the risk of discontinuing aspirin. We conducted a systematic review, and meta-analysis, in line with the Preferred Reporting Items for Systematic reviews and Meta-Analyses guidelines to evaluate the evidence of postoperative bleeding risk conferred by continuation of aspirin in cutaneous surgery.
Methods:
A systematic search of the literature was performed. Included studies evaluated the incidence of hemorrhage or hematoma in adults undergoing cutaneous surgery. The following participant characteristics were noted: age, sex, surgical site, and type of wound closure performed. A random-effects model was chosen to calculate the effect size-expressed as odds ratio (OR) with a 95% confidence interval-for bleeding of any severity, moderate severity, severe severity, infection, and wound dehiscence (outcomes).
Results:
A total of 26,860 procedures were included from 20 studies. A statistically significant increase in odds of bleeding of any severity (16,748 procedures included) OR 1.39 (1.02-1.90) and for bleeding of severe severity (12,311 procedures included) OR 2.46 (1.53-3.95) was identified. Moderate severity bleeding (1629 procedures included) OR 0.92 (0.46-1.81), infection OR 0.60 (0.28-1.28), and wound dehiscence OR 0.92 (0.41-2.06) effect size results did not attain statistical significance.
Conclusions:
Our analysis identified a statistically significant increase in postoperative bleeding risk for patients taking aspirin and undergoing cutaneous surgery.
Related Concept Videos
Antiplatelet Drugs: Prostaglandin Synthesis, P2Y12 and Glycoprotein IIb/IIIa Inhibitors
Prostaglandin synthesis inhibitors, exemplified by the widely known aspirin, wield their power by irreversibly acetylating...
Clinical Applications of Epidermal Stem Cells
Anticoagulant Drugs: Low-Molecular-Weight Heparins
Local Anesthetics: Pharmacokinetics
Extrinsic and Intrinsic Pathways of Hemostasis
The Extrinsic Pathway
The extrinsic pathway of coagulation is typically initiated by tissue damage that exposes blood to tissue factor (TF), a protein released by the damaged tissue cells outside the blood vessels—this interaction with TF triggers biochemical reactions involving specific clotting factors. The key player here is Factor VII, which...

