Differential Diagnosis for Rapid Hair Loss
- Single most likely diagnosis
- Telogen Effluvium: This condition is characterized by a significant increase in the number of hair follicles that stop growing and enter the resting phase, leading to excessive hair shedding. It is often triggered by stress, hormonal changes, or medical conditions, making it a common cause of rapid hair loss.
- Other Likely diagnoses
- Androgenetic Alopecia: Also known as male/female pattern baldness, this condition is caused by the conversion of testosterone to dihydrotestosterone (DHT), which leads to hair follicle shrinkage and eventual hair loss.
- Alopecia Areata: An autoimmune disease that causes the body's immune system to attack hair follicles, resulting in patchy hair loss.
- Thyroid Disorders: Both hypothyroidism and hyperthyroidism can cause hair loss due to the hormonal imbalance affecting hair growth cycles.
- Do Not Miss (ddxs that may not be likely, but would be deadly if missed.)
- Lupus: A chronic autoimmune disease that can cause hair loss, among other symptoms, and requires prompt treatment to prevent serious complications.
- Thyroid Cancer: Although rare, thyroid cancer can cause hair loss, and early detection is crucial for effective treatment.
- Pituitary Tumors: Tumors in the pituitary gland can disrupt hormone production, leading to hair loss, and may have serious consequences if left untreated.
- Rare diagnoses
- Trichotillomania: A psychological disorder characterized by compulsive hair pulling, leading to noticeable hair loss.
- Tinea Capitis: A fungal infection of the scalp that can cause hair loss, often seen in children.
- Loose Anagen Syndrome: A rare condition where hair is easily pulled out due to a defect in the hair follicle anchorage.