Differential Diagnosis for 34yoF with Metallic Taste in Mouth
- Single most likely diagnosis
- Pregnancy: A metallic taste in the mouth is a common complaint during pregnancy, especially in the first trimester, due to hormonal changes.
- Other Likely diagnoses
- Gingivitis or Periodontal Disease: Inflammation of the gums can cause a metallic taste due to the release of bacterial products and inflammatory mediators.
- Upper Respiratory Tract Infections: Viral or bacterial infections can lead to a metallic taste, possibly due to postnasal drip or sinusitis.
- Medication Side Effects: Certain medications, such as antibiotics, antihistamines, and decongestants, can cause a metallic taste as a side effect.
- Zinc Deficiency: A deficiency in zinc can lead to altered taste perception, including a metallic taste.
- Do Not Miss (ddxs that may not be likely, but would be deadly if missed.)
- Heavy Metal Poisoning (e.g., Lead, Mercury, Arsenic): Exposure to heavy metals can cause a range of symptoms, including a metallic taste, and can be life-threatening if not addressed.
- Neurological Disorders (e.g., Multiple Sclerosis, Parkinson's Disease): Certain neurological conditions can affect the sense of taste, leading to a metallic taste.
- Cancer (e.g., Head and Neck, Lung): Although rare, cancer can cause a metallic taste, especially if it affects the oral cavity, sinuses, or lungs.
- Rare diagnoses
- Sjögren's Syndrome: An autoimmune disorder that can cause dry mouth and altered taste perception, including a metallic taste.
- Bell's Palsy: A condition that affects the facial nerve, potentially leading to taste disturbances, including a metallic taste.
- Idiopathic Hypogeusia: A rare condition characterized by a decreased sense of taste, which can manifest as a metallic taste.