Labor dystocia
Lactational mastitis
Lambert-Eaton myasthenic syndrome
Langerhans cell histiocytosis
Laryngeal cancer
Laryngitis
Lateral elbow tendinopathy
Lentigo maligna
Leprosy
Leptomeningeal metastasis
Lichen planus
Lichen sclerosus
Lightning injury
Limb-girdle and distal dystrophies
Lithium toxicity
Liver cirrhosis
Liver metastasis
Liver transplantation
Liver trauma
Local anesthetic systemic toxicity
Localized scleroderma
Loeys-Dietz syndrome
Long COVID
Long QT syndrome
Low back pain
Lower extremity amputation
Lower extremity arterial injury
Lower gastrointestinal bleeding
Lumbar spinal stenosis
Lung transplantation
Lupus nephritis
Lyme disease
Lymphedema
Lymphogranuloma venereum
Lynch syndrome