An observational study in Nevus, Seborrheic Keratosis (SK) and Cyst, sponsored by Union Hospital, Tongji Medical College, Huazhong University of Science and Technology. Completed at 1 site in China. Open to participants aged 14 Years to 60 Years. Per ClinicalTrials.gov, last updated 2026-02-03.
Sponsored by Union Hospital, Tongji Medical College, Huazhong University of Science and Technology · Observational
The goal of this observational study is to learn how an individual's skin type influences the wound healing process and scar formation in Chinese patients undergoing facial dermatologic surgery. The main questions it aims to answer are:
How does skin type affect the quality of wound healing after facial surgery?
How does skin type affect the formation of hypertrophic scars after facial surgery?
Researchers will compare groups of patients with different skin types (classified by the Baumann Skin Type) to see if there are significant differences in their healing outcomes and scar characteristics.
Participants in this study will:
Receive standard facial dermatologic surgery as part of their clinical care.
Have their skin type assessed preoperatively.
Undergo scheduled postoperative follow-up assessments at 7 and 90 days to evaluate wound healing and scar development using standardized scales.
47 studies on the registry are indexed under Nevus; 9 are open to participants now.
This study's enrollment of 173 is above the median of 145 across 28 observational studies indexed under Nevus.
Browse Nevus studies →Union Hospital, Tongji Medical College, Huazhong University of Science and Technology is the lead sponsor of 181 studies on the registry; 144 are open to participants now.
Counted across the registry records on this site, refreshed daily.
patients undergoing facial skin surgery to remove benign lesions
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
The diagnosis was confirmed by looking at a sample under a microscope: tissue from a biopsy or surgery (histology), or cells from a fluid or needle sample (cytology).
Your pathology report is the document that shows this.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.
Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.
A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.
Read whether the line is about a condition or about medicines, and which medicines and doses it means.
Histologically or cytologically confirmed
The diagnosis was confirmed by looking at a sample under a microscope: tissue from a biopsy or surgery (histology), or cells from a fluid or needle sample (cytology).
Your pathology report is the document that shows this.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Corticosteroids (steroids)
Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.
Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Immunosuppression
A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.
Read whether the line is about a condition or about medicines, and which medicines and doses it means.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
classified as having oily skin according to the Baumann questionnaire
classified as having dry skin according to the Baumann questionnaire
Patient and Observer Scar Assessment Scale version 2.0 (POSAS 2.0)
This scale comprises two separate subscales: the Observer Scar Assessment Scale (completed by the clinician) and the Patient Scar Assessment Scale (completed by the participant). The Observer Scale evaluates six items (vascularity, pigmentation, thickness, relief, pliability, and surface area) on a scale from 1 ("like normal skin") to 10 ("the worst scar imaginable"), with a total score ranging from 6 (best) to 60 (worst). The Patient Scale evaluates six items (pain, itching, color, stiffness, thickness, and irregularity) on a scale from 1 ("no, not at all") to 10 ("yes, very much"), with a total score also ranging from 6 (best) to 60 (worst). For both subscales, a higher score indicates a worse scar quality.
Time frame: 3-month follow-up
modified Stony Brook Scar Evaluation Scale (mSBSES)
Evaluations were independently performed by two clinicians who were blinded to group allocation. The scale comprises four items: scar width, height, color, and suture marks. Each item is scored from 0 to 2 points, where a score of 2 represents the closest resemblance to normal skin, and 0 represents the worst appearance. The total score ranges from 0 to 8, with a higher score indicating a more ideal scar appearance.
Time frame: 3-month follow-up
Incidence of Postoperative Edema
Assessed by direct clinical examination. Unit: % of participants with the presence of edema.
Time frame: 7-day follow-up
Incidence of Wound Suppuration
7-day follow-up
Time frame: Assessed by direct clinical examination. Unit: % of participants with the presence of suppuration.
Incidence of Peri-wound Erythema
Assessed by direct clinical examination. Unit: % of participants with the presence of erythema.
Time frame: 7-day follow-up
Incidence of Wound Tenderness
Assessed by patient report. Unit: % of participants reporting tenderness.
Time frame: 7-day follow-up
Incidence of Postoperative Hemorrhage
Assessed by direct clinical examination. Unit: % of participants with active bleeding or hematoma formation.
Time frame: 7-day follow-up
Incidence of Peri-wound Ecchymosis
Assessed by direct clinical examination. Unit: % of participants with the presence of ecchymosis.
Time frame: 7-day follow-uo
Ran from Jun 2025 to primary completion in Jan 2026, 7 months.
Of 14 observational studies under Nevus, half reached primary completion within 34 months of starting (the median), counting those still running; a quarter within 21 and three quarters within 104. This study's 7 months is below that.
How these figures are worked out, and which studies are left out of them.
This study is completed, as verified in Jan 2026. You cannot join it, but the record below documents what was studied.
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Union Hospital, Tongji Medical College, Huazhong University of Science and Technology →