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No, being dehydrated does not cause veins to collapse – they are only caused by injections. However, being dehydrated thickens your blood, which can exacerbate vein damage and problems with circulation.
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The content is intended to augment, not replace, information provided by your clinician. It is not intended nor implied to be a substitute for professional medical advice. Reading this information does not create or replace a doctor-patient relationship or consultation. If required, please contact your doctor or other health care provider to assist you to interpret any of this information, or in applying the information to your individual needs.