
HAVS Can Turn Years Of Tool Vibration Into A Workers’ Compensation Claim
Some workplace injuries happen in an instant. Others develop slowly after months or years of exposure. Hand-arm vibration syndrome, commonly called HAVS, falls into that second category and may support a New York workers’ compensation claim when the condition is caused by repeated use of vibrating tools on the job.
Early symptoms such as tingling, numbness, or fingers turning white in the cold can be easy to dismiss as ordinary hand fatigue. But HAVS can involve both the nerves and blood vessels of the hands, and continued exposure may lead to increasingly serious and potentially irreversible problems.
Our New York workers’ compensation lawyers at Pasternack Tilker Ziegler Walsh Stanton & Romano LLP represent workers with occupational injuries that develop gradually rather than from one identifiable accident. In a HAVS claim, medical diagnosis matters, but so do the worker’s history of vibration exposure, the relationship between the job and the condition, and the extent of any permanent loss of hand function.
Repeated Use Of Vibrating Tools Can Damage Nerves And Blood Vessels
HAVS develops after repeated exposure to vibration transmitted through the hands and arms. Workers who regularly use jackhammers, grinders, sanders, impact tools, chainsaws, drills, riveters and similar equipment may face particularly significant exposure.
The National Institute for Occupational Safety and Health has long recognized that vibrating hand tools can cause circulatory and neurological problems in the fingers. Symptoms can include numbness, pain, and blanching, or fingers turning pale because of reduced blood flow.
Those risks are especially relevant for construction, maintenance, manufacturing, automotive, and other workers who may spend much of a shift gripping powered equipment. We have previously discussed how power-tool vibration can cause workplace injuries even when the equipment itself is functioning normally.
HAVS is therefore different from a hand injury caused by a single defective tool or a sudden accident. The damaging exposure may be part of the worker’s ordinary job duties for years before the symptoms become severe enough to force medical treatment.
White Fingers And Numbness Can Point To Different Parts Of HAVS
HAVS can affect the vascular and sensorineural systems differently, which is one reason the condition isn’t always straightforward to diagnose.
The vascular component is commonly associated with vibration-induced white finger. Cold temperatures may trigger episodes in which one or more fingers become pale or white as circulation decreases. As the condition progresses, attacks may involve more fingers or larger portions of the fingers.
The sensorineural component affects nerves. A worker may notice:
- Tingling or Pins And Needles that repeatedly develop after tool use.
- Numbness that becomes more frequent or eventually persists between shifts.
- Reduced Sensation that makes it harder to feel small objects, temperature, or pressure.
- Loss of Dexterity that interferes with buttons, fasteners, tools, or other precise hand movements.
- Weak Grip that makes ordinary work tasks increasingly difficult.
These symptoms can overlap with other work-related nerve injuries, including neuropathy and nerve compression. Carpal tunnel syndrome can also cause numbness and tingling, so a diagnosis shouldn’t rest solely on symptoms without considering the worker’s occupational history and other possible causes.
The Stockholm Workshop Scale Describes HAVS Severity
One commonly used medical framework for describing HAVS is the Stockholm Workshop Scale. It separates vascular symptoms from sensorineural symptoms because the two components don’t necessarily progress at the same rate.
The vascular portion generally runs from Stage 0, with no blanching attacks, through progressively more extensive blanching involving additional fingers and finger segments. The most severe vascular category can include extensive attacks and trophic skin changes.
The sensorineural scale also begins at Stage 0 and progresses from intermittent numbness or tingling to persistent sensory loss and reduced tactile discrimination or manual dexterity.
A worker can therefore have relatively significant nerve symptoms without having equally advanced vascular symptoms, or vice versa. Each hand can also be affected differently depending on how tools are held and how vibration is transmitted to the body.
That makes the Stockholm classification useful for documenting the medical condition. But there is an important workers’ compensation distinction: a Stockholm stage is not automatically a New York disability percentage.
New York Uses Its Own Rules To Evaluate Permanent Hand Impairment
If HAVS leaves permanent loss of function, New York workers’ compensation may eventually require a separate permanency evaluation.
A worker generally isn’t evaluated for permanent impairment until reaching maximum medical improvement, or MMI. That’s the point when the condition has stabilized enough for a doctor to assess the lasting impairment.
Permanent impairment involving the hand or fingers may potentially qualify for a Schedule Loss of Use award depending on the established injury and the Workers’ Compensation Board’s impairment rules.
The Board’s SLU process considers permanent functional loss of the scheduled body part. That isn’t the same question the Stockholm scale is answering. A doctor may use HAVS staging to describe the condition clinically while separately evaluating permanent impairment under New York’s workers’ compensation guidelines.
This distinction matters because a worker shouldn’t assume that a Stockholm Stage 2 diagnosis automatically equals a particular percentage loss of use of the hand. The two systems measure different things.
HAVS May Qualify As An Occupational Disease In New York
HAVS often develops through repeated exposure rather than one traumatic event. When the condition results from the nature of a worker’s job, it may be pursued as a New York occupational disease.
The New York Workers’ Compensation Board describes occupational diseases as illnesses or conditions associated with a particular occupation or industry. A worker with a qualifying occupational disease can receive the same types of workers’ compensation benefits available for an on-the-job injury.
Proving the claim usually requires more than showing that the worker has HAVS. There also needs to be medical evidence connecting the disease to the nature of the employment.
For example, imagine a construction worker who has used pneumatic breakers and grinders for 15 years. He begins experiencing intermittent finger numbness but doesn’t seek treatment because the symptoms disappear after work. Two years later, his fingers repeatedly turn white in cold weather, and a specialist diagnoses HAVS after taking a detailed occupational history.
That work history matters. The duration of exposure, types of tools, hours of daily use, symptoms, and medical opinion can all help establish why the condition is occupational rather than unrelated to the job.
The Occupational Disease Filing Deadline Can Be Different From A Sudden Accident
New York Workers’ Compensation Law Section 28 addresses the timing of occupational-disease claims.
According to the Workers’ Compensation Board, a worker generally has two years from the date of disablement or two years from when the worker knew or should have known that the disease was due to the nature of the employment.
That rule is especially important for gradual injuries because there may be no obvious date of injury.
A worker may have noticed tingling for years without knowing the symptoms were occupational. A later medical diagnosis connecting years of vibration exposure to the condition can therefore become highly significant when determining whether the claim was filed on time.
Workers shouldn’t assume they have unlimited time, however. Once symptoms begin to interfere with work or a doctor identifies the occupational connection, delaying the claim can create avoidable disputes over notice, causation, and timeliness.
A Detailed Work History Can Be As Important As The Medical Tests
One of the practical difficulties with HAVS is that the condition may not be obvious during a doctor’s appointment. Vascular attacks can be intermittent and may be triggered by cold temperatures that aren’t present in the examination room.
That makes a detailed history especially important. Workers should be prepared to explain:
- Which vibrating tools they used.
- Approximately how many hours per shift they used them.
- How many years the exposure continued.
- Whether the symptoms began in one hand or both.
- When numbness, tingling, or blanching first appeared.
- Whether cold temperatures trigger symptoms.
- Whether grip strength or fine motor ability has declined.
Consistent documentation can also help distinguish HAVS from other repetitive stress injuries and conditions that can produce similar symptoms.
Workers should also tell their doctor exactly what they do for a living. A medical record that simply says “hand numbness” is far less useful in an occupational-disease claim than one documenting years of jackhammer, grinder, or power-tool exposure and the physician’s opinion about causation.
Permanent Hand Damage Can Affect More Than The Workers’ Comp Award
For someone whose livelihood depends on using tools, a hand condition can threaten the ability to continue in the same occupation even if the worker remains capable of some employment.
A mechanic who can no longer grip an impact wrench safely or a construction worker who loses the dexterity needed to handle tools may need permanent restrictions. A worker with significant loss of hand function may also face disputes over the appropriate disability classification or permanency award.
Workers who can’t return to their previous jobs may also be eligible for vocational rehabilitation services designed to help them return to suitable employment or transition into different work.
Our New York Workers’ Compensation Lawyers Can Help With HAVS Claims
HAVS claims can be challenging because the injury develops gradually, symptoms may overlap with other hand and nerve conditions, and the insurance carrier may dispute whether years of tool exposure actually caused the problem.
Our New York workers’ compensation attorneys can review your occupational history, medical evidence, diagnosis, and job duties to determine how the condition may fit within New York’s occupational disease rules. We can also address disputes involving causation, lost wages, medical treatment and permanent impairment.
If years of working with jackhammers, grinders, drills or other vibrating equipment have left you with numbness, white fingers, reduced grip strength or other hand problems, contact us for a free case evaluation. We can review what happened and explain the workers’ compensation benefits that may be available.
“I just wanna say this: this company IS THE BEST PLACE to go to when you’re dealing with workers’ compensation. They fought for me and my case for about two years, but it was worth every second. They care about what happened to you and how they can help your situation!” – N.R., ⭐⭐⭐⭐⭐
Prior results do not guarantee outcomes.
Attorney Advertising.











