Does Alcohol Thin Your Blood? Short- and Long-Term Effects

During the metabolism of alcohol, pyruvate is reduced to lactate, which creates lactic acidosis. Hence, it is challenging to distinguish the cause of lactate elevation in a trauma patient who consumed alcohol, as it could be due to high degree of shock or metabolism of the alcohol. However, further studies are required to devise methods to identify the cause of lactate elevation in such patients. People taking blood thinners are cautioned against drinking alcohol, but research has found that it is generally safe when done so infrequently and in moderation. Speak to a healthcare provider before drinking alcohol while on blood thinners.
Global status report on alcohol and health 2018
However, additional studies are warranted to clarify the association between AI and VTE. Although our results do not reveal the mechanism for this association, according to our literature review, we suggest that several possible explanations exist for the mechanism for this association. While alcohol may have blood thinning effects, it may also increase the risk of cardiovascular conditions and blood clots.
How long does it take to lower MCV?
- Second, various cut-off values for the categories of alcohol intake were used across studies, which led to a certain degree of heterogeneity.
- This could be result from the relative small sample size of these 2 groups.
- The quality of the included studies was assessed by NOS, which was summarized in Supplementary Table S2, and the mean NOS score was 7.5 (range, 6–9).
- It’s relatively safe to consume alcohol as long as you’re in good overall health and have confirmed with a healthcare professional.
When a person drinks excessively for long periods, their risk for a stroke increases. The effects of alcohol consumption on the blood are either short-term or long-term. Short-term effects happen to occur during or directly after consuming alcohol, and long-term effects are driven by excessive use over an extended period of time.

How Long Do These Effects Last?

Even minor injuries, such as scratches, can damage blood vessels and cause bleeding. To control excessive bleeding and ensure an injury does not become life-threatening, the blood clots. When alcohol is introduced into the equation, the blood’s ability to clot is compromised.
Prevention and Risk Factors
- Alcohol may not trigger blood clotting processes but actually, restrict them.
- Experts define binge drinking as consuming in excess of four drinks for females or five drinks for males within around 2 hours.
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- A scab that forms after you get a cut, for example, is a type of blood clot.
But moderation is key – and doctors don’t recommend drinking alcohol to protect against DVT. In our study, patients in the alcohol positive group had lower GCS, lower SBP, higher head AIS and higher lactic acid levels compared to those in the alcohol negative group. We believe that the reason for lower GCS was not just alcohol, but also the effects of head trauma and the state of shock.
More On DVT

Suman Rathbon, MD, director of vascular medicine, University of Oklahoma Health Science Center, Oklahoma City. When you drink, you might get tipsy and lose your balance, too. Herein the authors declare that there’s not any conflict of interest with this research work. Approval was obtained from the North-West University Health Research Ethics Committee. The datasets used and/or analysed during the current study are available from the Principle Investigator of the South African arm of the PURE-study, Prof. Iolanthé M. Kruger, on reasonable request. This project was funded by a Self-Initiated Research grant from the South African Medical Research Council as well as an Academy of Medical Sciences UK partnered Newton Fund Advanced Fellowship (AMS-NAF1-Pieters) grant to MP.
Alcohol and hemorrhagic stroke: the Honolulu Heart Program
- A 2016 review suggests that significant daily alcohol consumption increases the activity of platelets.
- The associations between alcohol intake and its markers with CLT remained after controlling for total fibrinogen concentration, particularly in drinkers, but not in abstainers.
- This study was approved by the Institutional Review Board of China Medical University (CMUH-104-REC2–115).
- Consuming alcohol leads to a lower number of blood platelets because the substance hinders the bone marrow’s ability to produce these cells.
- Further, alcohol is an independent risk factor for mortality among patients who experienced fibrinolysis shutdown.
Each patient was monitored from 2000 to 2011 to identify those who were subsequently diagnosed with deep vein thrombosis (DVT) and pulmonary embolism (PE). Cox proportional hazard regression analysis was conducted to determine the risk of VTE in the patients with AI compared with the controls. This study investigated whether alcohol intoxication (AI) increases the risk of venous thromboembolism (VTE) by using the Taiwan National Health Insurance Research Database (NHIRD). Blood thinners may interact with alcohol as well as certain other medications, foods, and dietary supplements. For example, the NIAA advises that drinking alcohol while taking is alcohol a blood thinner warfarin, which is a blood thinner, can have adverse effects.
- For men under age 65, up to two drinks a day is considered moderate.
- The American Heart Association and National Heart, Lung, and Blood Institute advise against starting to drink alcohol just to prevent heart disease.
- More research is needed about whether red wine is better for the heart than other types of alcohol, such as beer or hard liquor.
- To control excessive bleeding and ensure an injury does not become life-threatening, the blood clots.
Fourth, the results of our study are likely to be only generalizable to Western populations and may not be generalizable to Asian populations. Fifth, some studies included former drinkers in the reference group, which may distort the association. If alcohol consumption has a protective role in VTE, the inclusion of former drinkers in the reference group can result in an underestimate of the true association. Finally, because of the limited data, a subgroup analysis for pulmonary embolism, unprovoked, provoked VTE, and beverage type was not performed.
They may refer to them as blood thinners, anticoagulants, or antiplatelet drugs. A doctor may prescribe these medications to reduce a person’s risk of heart attack and stroke. Menopause brings about many changes – some expected, others surprising.


