Reported Reactions

Devices › Dermal cooling pack/vacuum/massager

Device brand name · Dermal cooling pack/vacuum/massager

Unknown Coolsculpting System: medical device reports filed with FDA

1,553 reports name it, 2021–2026. Manufacturer given most often on reports: Allergan Pleasanton. Product code OOK.

1,553
device reports naming the brand
0% of all MAUDE reports · about 296 a year
117
reports, 12 months to August 2026
164 in the 12 months before
0.1%
classified as malfunction
1.8% across the product code
0%
classified as death, as reported
0 reports · not verified by FDA

1,553 medical device reports received by FDA name the brand "Unknown Coolsculpting System" (dermal cooling pack/vacuum/massager); the manufacturer given most often on reports is Allergan Pleasanton; received from April 2021 to August 2026. Brand names are as the reporter or manufacturer wrote them, so one product can appear under several spellings.

117 reports arrived in the 12 months to August 2026, down 29% from 164 in the 12 months before. FDA releases MAUDE data monthly; reports can arrive months after an event, so the newest months grow in later releases. The event types recorded are injury (99.9%) and malfunction (0.1%); across all dermal cooling pack/vacuum/massager reports (product code OOK) death is recorded in 0% and malfunction in 1.8%. Event type is the reporter's classification of the report, not a verified outcome.

The device problems coded most often are insufficient device problem information (1.5%), off-label use (0.4%) and device handling problem (0.1%). The patient problems coded most often are hyperplasia, hernia and appropriate clinical signs, symptoms and conditions term/code not available. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data."

Reports by month, five years

04283Sep 2021: 30Oct 2021: 38Nov 2021: 35Dec 2021: 172022Jan 2022: 36Feb 2022: 27Mar 2022: 47Apr 2022: 52May 2022: 45Jun 2022: 45Jul 2022: 36Aug 2022: 39Sep 2022: 46Oct 2022: 25Nov 2022: 36Dec 2022: 302023Jan 2023: 14Feb 2023: 28Mar 2023: 24Apr 2023: 19May 2023: 54Jun 2023: 83Jul 2023: 25Aug 2023: 69Sep 2023: 33Oct 2023: 19Nov 2023: 14Dec 2023: 212024Jan 2024: 28Feb 2024: 38Mar 2024: 21Apr 2024: 28May 2024: 20Jun 2024: 13Jul 2024: 26Aug 2024: 24Sep 2024: 12Oct 2024: 19Nov 2024: 9Dec 2024: 222025Jan 2025: 7Feb 2025: 15Mar 2025: 10Apr 2025: 34May 2025: 15Jun 2025: 9Jul 2025: 6Aug 2025: 6Sep 2025: 7Oct 2025: 9Nov 2025: 7Dec 2025: 92026Jan 2026: 4Feb 2026: 7Mar 2026: 13Apr 2026: 8May 2026: 15Jun 2026: 12Jul 2026: 9Aug 2026: 17

Reports by the month FDA received them. FDA releases MAUDE data monthly; reports can arrive months after an event, so the newest months grow in later releases.

By year received

02324642021: 20720212022: 46420222023: 40320232024: 26020242025: 13420252026: 852026

Event type and report source

Event type, as classified on the report

Death0%0
Injury99.9%1,551
Malfunction0.1%2
Other0%0
Not given0%0

Who filed the report

Manufacturer report100%1,553
Voluntary report0%0
User facility report0%0
Distributor report0%0
Not given0%0

Grey bar: all 11,460 reports carrying product code OOK. Event type is the filer's classification and is not verified by FDA.

Device problems coded

Device problem (FDA code)ReportsShareShare across product code
Insufficient device problem information231.5%2.3%
Off-label use60.4%0.2%
Device handling problem20.1%0%
Leak/splashthe device leaked10.1%1.5%
Material frayed10.1%0%
Temperature problem10.1%0.1%

FDA's device problem codes as entered on the report; one report can carry several. Generic codes such as "no apparent adverse event" are left out.

Patient problems coded

Patient problem (FDA code)ReportsShare
Hyperplasia1,47995.2%
Hernia211.4%
Appropriate clinical signs, symptoms and conditions term/code not available181.2%
Full thickness (third degree) burn100.6%
Necrosisdeath of tissue90.6%
Painpain, site not specified70.5%
Partial thickness (second degree) burn60.4%
Physical asymmetry60.4%
Deformity/ disfigurement50.3%
Hematomaa collection of blood under the skin or in tissue40.3%
Inflammationinflammation30.2%
Neuropathy30.2%
Scar tissue30.2%
Anxietyanxiety20.1%
Depressionlow mood20.1%

Patient problem codes are present mainly in reports filed since 2019 and are often blank.

In context

MeasureUnknown Coolsculpting SystemProduct code OOKAll MAUDE reports
Reports1,55311,46026,136,888
Share of that pool—13.6%0%
Classified as death, per 1,000 reports009
Classified as injury99.9%98.2%36.2%
Classified as malfunction0.1%1.8%62.3%
Filed by the manufacturer100%98.7%94.9%

Shares are of reports, not of devices in use. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data."

Other brands with product code OOK

BrandReportsLatest 12 monthsClassified as death
Coolsculpting System7,9243140%
CoolSculpting Elite System1,4722870%
Unk Coolsculpting16200%

Ordered by report count for navigation only. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data." FDA also states that "common products may have a higher number of adverse events due to the higher total number of people using the product."

Questions about Unknown Coolsculpting System reports

How many FDA reports name Unknown Coolsculpting System?

1,553 medical device reports in the openFDA MAUDE release of 28 Sep 2026, covering reports received through August 2026; 117 in the latest 12 months.

What kinds of events are reported?

injury (99.9%) and malfunction (0.1%). "Event type" is how the report was classified when filed: death, injury, malfunction or other.

What device problems are coded?

insufficient device problem information (1.5%), off-label use (0.4%), device handling problem (0.1%), leak/splash (0.1%) and material frayed (0.1%). These are FDA's device problem codes as entered on the report.

Who files these reports?

manufacturer reports (100%). Manufacturers and user facilities are required to report; voluntary reports come from health professionals and the public.

Do these reports show that Unknown Coolsculpting System was at fault?

No. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data." FDA adds that "a causal relationship cannot be established between product and reactions listed in a report."

How do I report a problem with a medical device?

Through FDA MedWatch (Form FDA 3500 for health professionals and consumers), or to the manufacturer. See the guide on how to report.

Where this comes from. Counts are built from the openFDA Device Adverse Event (MAUDE) bulk export released 28 Sep 2026, which holds reports FDA received through 31 Aug 2026. Brand, generic and manufacturer names are as written on the reports; product code names come from FDA's device classification. A report counts here when any device it lists carries this brand name after punctuation and capitalisation are normalised. No report narrative, lot number, patient detail or reporter identity is published. See the methodology and sources; FDA's record is authoritative, and corrections are handled within five working days.

Drug data (FAERS) through 30 Jun 2026; device data (MAUDE) through 31 Aug 2026. Not medical advice.