Muscle Cramps / Leg Cramps, Differential Diagnosis

Idiopathic cramps (the most common type) Dehydration; volume depletion Exercise-induced cramps Pregnancy Hemodialysis (volume and electrolyte shifts); ESRD Muscle injury e.g. from sports; Exercise-associated muscle cramping; excessive running Diabetes Hypothyroidism,...

Edema of leg (Pedal Edema), Differential Diagnosis

Differential diagnosis of Pedal Edema / Lower Extremity Edema Systemic causes (usually bilateral/symmetric edema): Heart failure (CHF/RHF) Heart valve disease (pulmonic, tricuspid) Constrictive pericarditis Liver disease; Cirrhosis Renal disease, Nephrotic syndrome...

Red skin patch, Differential Diagnosis

Infection Cellulitis Candida Tinea Bug bite reactions Impetigo Pityriasis rosea (herald patch) Lyme disease Autoimmune/Inflammatory Eczema, atopic Nummular eczema Contact dermatitis Psoriasis Discoid lupus Urticaria Xerotic eczema Cancer: Basal cell carcinoma Mycosis...

Burning / Painful Mouth or Tongue, Differential Diagnosis

Burning mouth syndrome (idiopathic) Aphthous stomatitis Herpes stomatitis Candidiasis Drugs causing xerostomia Connective tissue disease causing xerostomia Sjogren’s disease leading to xerostomia Radiation therapy causing xerostomia Chemotherapy causing...

Constipation, differential diagnosis

Functional constipation (Idiopathic) Causes of secondary constipation Medications Endocrine or metabolic Diabetes mellitus Diabetic neuropathy Autonomic neuropathy Hypothyroidism Hyperparathyroidism Hypopituitarism, Panhypopituitarism Hypercalcemia Hypocalcemia,...