Which factors can cause myasthenia gravis (MG) symptoms worsen?

Updated: Aug 27, 2018
  • Author: Abbas Jowkar, MD; Chief Editor: Nicholas Lorenzo, MD, MHA, CPE  more...
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Symptoms may worsen with exposure to extreme heat or emotional stress. Infection, systemic illness, pregnancy, the menstrual cycle, or drugs that affect neuromuscular transmission may also exacerbate myasthenia. Patients may report that they plan activities for early in the day when their strength is at its peak.

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