Differential Diagnosis for Numb Feet
- Single most likely diagnosis
- Peripheral Neuropathy: This condition is characterized by numbness, especially in the feet, which can be exacerbated by weight-bearing activities. The nighttime swelling and cramps could be related to poor circulation or nerve damage, common in peripheral neuropathy.
- Other Likely diagnoses
- Morton's Neuroma: A condition that causes numbness and discomfort in the feet, particularly between the toes, which can worsen with weight-bearing activities.
- Tarsal Tunnel Syndrome: Similar to carpal tunnel syndrome but affects the feet, causing numbness, tingling, and pain, especially at night or after periods of inactivity.
- Plantar Fasciitis: While primarily causing pain, it can lead to numbness if the inflammation affects nearby nerves. The discomfort typically worsens with weight-bearing activities.
- Do Not Miss (ddxs that may not be likely, but would be deadly if missed.)
- Deep Vein Thrombosis (DVT): Although less common, DVT can cause swelling and discomfort in the feet, especially at night. It's crucial to rule out DVT due to its potential for leading to pulmonary embolism, a life-threatening condition.
- Diabetic Foot: In diabetic patients, numbness and swelling can be signs of a serious infection or neuropathy. Early detection is critical to prevent severe complications.
- Compartment Syndrome: A condition that can cause numbness, pain, and swelling due to increased pressure within the muscle compartments. It's a medical emergency that requires prompt treatment.
- Rare diagnoses
- Charcot-Marie-Tooth Disease: A group of inherited disorders that affect the peripheral nerves, leading to numbness, muscle weakness, and atrophy, primarily in the feet and legs.
- Erythromelalgia: A rare disorder characterized by burning pain, heat, and redness in the hands and feet, which can also cause numbness and swelling.
- Peripheral Artery Disease (PAD): While more commonly associated with claudication (pain in the legs during exercise), severe PAD can lead to numbness and swelling in the feet due to reduced blood flow.