83 Diseases That Start With The Letter B

Have you ever wondered about diseases that start with the letter “B”? Wonder no more, this article is exactly what you are looking for.

In this article, I will dive into the realm of some known and lesser-known diseases beginning with this enigmatic letter B, aiming to raise awareness and understanding.

So, without any further ado, let’s embark on this fascinating journey and broaden our understanding of diseases that start with the letter B.


Diseases That Start With B

The followings are some known and lesser-known diseases that begin with the letter B (In alphabetical order):

1. Babesiosis: Babesiosis is a tick-borne illness caused by the parasite Babesia. It infects red blood cells and can lead to flu-like symptoms, anemia, and, in severe cases, complications for individuals with weakened immune systems.

2. Bacillary Dysentery: Bacillary dysentery, also known as shigellosis, is a bacterial infection caused by the Shigella bacteria. It results in severe diarrhea, abdominal cramps, and fever. Hydration and antibiotics are essential for treatment.

3. Back Pain: Back pain can arise from various causes, such as muscle strain, herniated discs, or spinal conditions. Proper posture, exercise, and pain management strategies can provide relief.

4. Bacteremia: Bacteremia refers to the presence of bacteria in the bloodstream, which can lead to serious infections if not promptly treated with antibiotics.

5. Bacterial Infection: Bacterial infections can affect various parts of the body and cause illnesses such as urinary tract infections, respiratory infections, and skin infections. Proper diagnosis and targeted antibiotic therapy are crucial for effective treatment.

6. Bacterial Vaginosis: Bacterial vaginosis is a common vaginal infection caused by an imbalance of bacteria. Antibiotics or antifungal medications may be prescribed for relief.

7. Bacteriuria: Bacteriuria refers to the presence of bacteria in the urine, often indicating a urinary tract infection. Antibiotics are used for treatment.

8. Balanitis: Balanitis is inflammation of the glans (head) of the penis and is often caused by bacterial or fungal infections. Good hygiene and topical medications are commonly recommended for treatment.

9. Balantidiasis: Balantidiasis is a parasitic infection of the intestines caused by the protozoan Balantidium coli. It can lead to gastrointestinal symptoms and is treated with antibiotics.

10. Balo’s Disease: Balo’s disease is a rare neurological disorder characterized by the destruction of myelin in the brain and spinal cord. Treatment aims to manage symptoms and slow disease progression.

11. Banti’s Syndrome: Banti’s syndrome is a condition where the spleen becomes enlarged due to chronic liver disease. Treatment focuses on managing the underlying liver condition.

12. Barrett’s Esophagus: Barrett’s esophagus is a complication of gastroesophageal reflux disease (GERD) where the lining of the esophagus changes, increasing the risk of esophageal cancer. Regular monitoring and lifestyle changes are essential for management.

13. Bartter Syndrome: Bartter syndrome is a rare genetic disorder affecting kidney function and salt balance. Treatment involves managing electrolyte imbalances and supporting kidney function.

14. Basal Cell Carcinoma: Basal cell carcinoma is a common type of skin cancer that typically appears on sun-exposed areas of the skin. Surgical removal or other treatment methods are used for cure.

15. B-cell Lymphoma: B-cell lymphomas are a group of cancers that affect B-cells, a type of white blood cell. Treatment may include chemotherapy, radiation, or targeted therapies.

16. Bed Bug Bite: Bed bug bites can cause itching and skin irritation. Eliminating bed bugs and using topical creams can help with symptom relief.

17. Bee or Yellow Jacket Sting: Bee or yellow jacket stings can cause localized pain and allergic reactions in some individuals. First aid measures and medical attention may be necessary for severe reactions.

18. Behavioral Health Problems: Behavioral health problems encompass a wide range of mental health conditions, including depression, anxiety, and addiction. Seeking professional help and support are vital for managing these issues.

19. Behcet’s Disease: Behcet’s disease is a rare autoimmune disorder causing inflammation of blood vessels. Treatment focuses on managing symptoms and preventing complications.

20. Bell’s Palsy: Bell’s palsy is a temporary facial paralysis caused by nerve inflammation. Most cases resolve on their own, but supportive care can aid recovery.

21. Benign Prostate Enlargement: Benign prostate enlargement, also known as benign prostatic hyperplasia (BPH), is a non-cancerous enlargement of the prostate gland, which can cause urinary symptoms. Treatment options include medications or surgical procedures to alleviate symptoms.

22. Benign Prostatic Hyperplasia (BPH): As mentioned earlier, BPH is a common condition in aging men, causing enlargement of the prostate gland, leading to urinary problems. Monitoring and managing symptoms are crucial for maintaining quality of life.

23. Berger’s Disease (IgA Nephropathy): Berger’s disease is a kidney disorder where the immune system deposits excess immunoglobulin A (IgA) in the kidneys, leading to inflammation and impaired kidney function. Treatment involves controlling blood pressure and minimizing kidney damage.

24. Berylliosis: Berylliosis is a lung disease caused by exposure to beryllium, often occurring in certain occupational settings. Avoiding further exposure and medications are used for symptom relief.

25. Beta-Thalassemia: Beta-thalassemia is an inherited blood disorder where the body produces inadequate or abnormal hemoglobin, leading to anemia. Blood transfusions and iron chelation therapy are commonly used treatments.

26. Bile Duct Cancer (Cholangiocarcinoma): Bile duct cancer is a rare form of cancer that affects the bile ducts in the liver. Treatment depends on the stage and location of the cancer and may include surgery, radiation, or chemotherapy.

27. Biliary Atresia: Biliary atresia is a congenital condition where the bile ducts are absent or blocked, leading to liver damage. Surgery is usually required to restore bile flow.

28. Binge Eating Disorder: Binge eating disorder is an eating disorder characterized by recurring episodes of excessive food consumption. Treatment may involve therapy and support groups to address emotional triggers and promote healthier eating habits.

29. Bipolar Disorder: Bipolar disorder is a mental health condition characterized by extreme mood swings between depression and mania. Medications and psychotherapy are essential components of treatment.

30. Birth Asphyxia: Birth asphyxia occurs when a newborn experiences inadequate oxygen supply during birth, leading to potential brain damage. Immediate medical intervention is critical for preventing complications.

31. Birthmarks: Birthmarks are skin markings present at birth or appearing shortly afterward. While most birthmarks are harmless, certain types may require medical evaluation and treatment.

32. Birt-Hogg-Dube Syndrome: Birt-Hogg-Dube syndrome is a genetic disorder causing benign tumors in the skin, lungs, and kidneys. Regular screenings and management of associated conditions are recommended.

33. Bladder Cancer: Bladder cancer is a type of cancer that develops in the cells lining the bladder. Treatment options include surgery, chemotherapy, and immunotherapy.

34. Bladder Exstrophy: Bladder exstrophy is a congenital condition where the bladder is exposed outside the body. Surgical reconstruction is needed to correct the defect.

35. Bladder Infection: Bladder infections, also known as urinary tract infections (UTIs), are bacterial infections affecting the bladder. Antibiotics are used for treatment.

36. Blastocystis Hominis Infection: Blastocystis hominis infection is caused by a microscopic parasite and can lead to gastrointestinal symptoms. Treatment involves antiparasitic medications.

37. Blepharitis: Blepharitis is inflammation of the eyelids, which can cause redness and irritation. Good eyelid hygiene and warm compresses are often used for management.

38. Blisters: Blisters are fluid-filled sacs that form on the skin due to friction or burns. Keeping blisters clean and protected can promote healing.

39. Blood Clotting Disorders: Blood clotting disorders, such as hemophilia, result in improper blood clot formation. Treatment may involve clotting factor replacement therapy.

40. Blood Poisoning (Sepsis): Blood poisoning, or sepsis, is a severe and potentially life-threatening condition caused by the body’s response to an infection. Immediate medical attention and antibiotics are crucial for survival.

41. Blurred Vision: Blurred vision can arise from various causes, such as refractive errors, eye strain, or underlying medical conditions. Corrective lenses or medical treatment may be necessary.

42. Body Dysmorphic Disorder (BDD): Body dysmorphic disorder is a mental health condition where individuals obsess over perceived flaws in their appearance. Cognitive-behavioral therapy and medication can be beneficial for managing BDD.

43. Boil: A boil is a painful, pus-filled bump caused by a bacterial infection of a hair follicle or oil gland. Warm compresses and drainage are commonly used for treatment.

44. Bone Cancer: Bone cancer can originate in the bone or spread from other sites. Treatment may involve surgery, radiation, or chemotherapy.

45. Bone Marrow Disorders: Bone marrow disorders, such as aplastic anemia or leukemia, can affect blood cell production. Treatment options depend on the specific disorder and its severity.

46. Bone Tumors and Soft Tissue Tumors: Bone and soft tissue tumors can be benign or malignant, requiring various treatment approaches, including surgery and chemotherapy.

47. Borderline Personality Disorder (BPD): Borderline personality disorder is a mental health condition characterized by unstable emotions and relationships. Dialectical behavior therapy and psychotherapy are common treatments.

48. Bordetella (Pertussis): Bordetella pertussis causes whooping cough, a highly contagious respiratory infection. Vaccination and antibiotics are essential for prevention and treatment.

49. Borreliosis: Borreliosis, also known as Lyme disease, is a bacterial infection transmitted by ticks. Early treatment with antibiotics is crucial to prevent complications.

50. Botulism: Botulism is a rare but serious foodborne illness caused by the bacteria Clostridium botulinum. Antitoxin and supportive care are necessary for treatment.

51. Bowel Cancer: Bowel cancer, also known as colorectal cancer, affects the colon or rectum. Treatment may involve surgery, radiation, and chemotherapy.

52. Bowel Incontinence: Bowel incontinence is the inability to control bowel movements. Treatment depends on the underlying cause and may include medications and lifestyle changes.

53. Bowel Obstruction: Bowel obstruction occurs when the intestines are partially or fully blocked, requiring immediate medical attention and often surgical intervention.

54. Bowel Polyps: Bowel polyps are growths on the inner lining of the colon or rectum. They are usually non-cancerous but may need removal to prevent potential cancer development.

55. Bowen’s Disease: Bowen’s disease is a precancerous condition where abnormal cells grow on the skin’s surface. Treatment may involve topical creams, freezing, or surgery.

56. Brachial Plexus Injury: Brachial plexus injury involves damage to the nerves controlling the arm and hand. Rehabilitation and physical therapy are often recommended for recovery.

57. Brachial Plexus Palsy: Brachial plexus palsy can occur during childbirth, leading to weakness or paralysis of the affected arm. Physical therapy and supportive care can promote healing.

58. Bradycardia: Bradycardia is a heart rhythm disorder characterized by an abnormally slow heartbeat. Treatment may be necessary if symptoms are severe.

59. Brain Abscess or Spinal Abscess: Brain or spinal abscesses are rare but serious infections requiring prompt medical intervention, often involving surgical drainage and antibiotics.

60. Brain Aneurysm: A brain aneurysm is a weak area in a blood vessel that can rupture, causing bleeding in the brain. Immediate medical attention is critical to prevent complications.

61. Brain Cancer: Brain cancer can originate in the brain tissue or spread from other sites. Treatment options include surgery, radiation, and chemotherapy.

62. Brain Stem Death: Brain stem death refers to the irreversible loss of brain stem function, indicating the end of all brain activity. It is a crucial factor in determining organ donation eligibility.

63. Brain Tumor: Brain tumors can be benign or malignant, and treatment depends on the tumor type and location. Surgery, radiation, and chemotherapy are common treatment options.

64. Breast Cancer: Breast cancer is the most common cancer in women, and early detection and treatment are crucial for improved outcomes. Treatment may include surgery, radiation, and chemotherapy.

65. Breath Test: Breath tests are diagnostic tests used to detect certain conditions, such as Helicobacter pylori infection or lactose intolerance.

66. Breathing Trouble: Breathing trouble can be caused by various respiratory conditions or cardiac issues, requiring immediate medical attention to identify and manage the underlying cause.

67. Broken Heart Syndrome: Broken heart syndrome, also known as stress-induced cardiomyopathy, is a temporary heart condition triggered by emotional stress. Supportive care and stress management are essential for recovery.

68. Broken Nose (Nasal Fracture): A broken nose requires evaluation by a healthcare professional, and treatment may involve repositioning the nasal bones or, in severe cases, surgery.

69. Bronchiectasis: Bronchiectasis is a chronic lung condition characterized by widened and damaged airways, leading to recurrent infections. Treatment aims to improve lung function and prevent exacerbations.

70. Bronchiolitis: Bronchiolitis is a common respiratory infection in young children, often caused by a viral infection. Supportive care, such as hydration and oxygen therapy, is essential for management.

71. Bronchitis: Bronchitis is inflammation of the bronchial tubes, causing coughing and difficulty breathing. Treatment may involve rest, hydration, and medications for symptom relief.

72. Brucellosis: Brucellosis is a bacterial infection transmitted from animals to humans, causing flu-like symptoms. Antibiotics are used for treatment.

73. Bruxism: Bruxism is the grinding or clenching of teeth, often occurring during sleep. Nightguards or mouth splints can help protect teeth from damage.

74. Buerger’s Disease: Buerger’s disease is a rare condition causing inflammation and blockage of small and medium-sized arteries in the hands and feet. Smoking cessation is essential to prevent progression.

75. Bulimia: Bulimia is an eating disorder characterized by binge-eating followed by purging behaviors. Treatment involves therapy and nutritional counseling.

76. Bulimia Nervosa: As mentioned earlier, this term refers to the eating disorder characterized by bingeing and purging behaviors, requiring specialized treatment for recovery.

77. Bullous Pemphigoid: Bullous pemphigoid is a skin disorder causing large, fluid-filled blisters. Treatment involves topical steroids and other medications to control the immune response.

78. Bunion: A bunion is a bony bump that forms at the base of the big toe, causing pain and discomfort. Proper footwear and, in severe cases, surgical correction can help alleviate symptoms.

79. Burkholderia Infections: Burkholderia infections are caused by bacteria of the Burkholderia genus and can lead to various illnesses. Antibiotics are used for treatment.

80. Burkitt Lymphoma: Burkitt lymphoma is a fast-growing type of non-Hodgkin lymphoma. Treatment may involve chemotherapy, immunotherapy, and radiation.

81. Burn: Burns can range from minor to severe injuries caused by heat, chemicals, electricity, or radiation. Immediate first aid and medical treatment are essential for proper healing.

82. Burning Mouth Syndrome: Burning mouth syndrome is a chronic pain condition causing a burning sensation in the mouth. Treatment may include medications to manage symptoms.

83. Bursitis: Bursitis is inflammation of the bursae, fluid-filled sacs that cushion joints. Rest, ice, and anti-inflammatory medications are commonly used for treatment.


I hope you found this article “Diseases That Start With B” helpful and got insights into some of the rare and lesser-known medical conditions.

Also, keep in mind that, this isn’t an exhaustive list, if there are any Diseases starting with the letter B.

Feel free to leave a comment below with the missing Disease and I’ll update the list as soon as possible.

And, if you’d like to explore more Diseases starting with different letters of the alphabet, click the link below:

  • Diseases That Start With C
  • Diseases That Start With D
  • Diseases That Start With E
  • Diseases That Start With F

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