Friday, 1 May 2026

📘 Chapter C3: Modules 23–26 (Combined Edition) Cancer, Nerve Compression, Infection & Viral/STI Conditions

 

🧬 Module 23: Cancer (Various Types)

Cancer is a group of diseases where abnormal cells grow uncontrollably and may spread to other parts of the body.

🔬 Common Types

  • Breast cancer
  • Lung cancer
  • Prostate cancer
  • Colorectal cancer
  • Skin cancer (e.g. basal cell carcinoma)
  • Bladder cancer

⚠️ Causes & Risk Factors

  • Genetic mutations
  • Smoking and tobacco exposure
  • Radiation exposure
  • Lifestyle factors (diet, alcohol, inactivity)
  • Environmental toxins

🏥 Treatment Options

  • Surgery (removal of tumour)
  • Chemotherapy (drugs targeting cancer cells)
  • Radiotherapy (targeted radiation)
  • Immunotherapy (boosting immune response)

🧠 Key Idea

Cancer is not one disease — it is a group of conditions with different causes, behaviours, and treatments.


Module 24: Carpal Tunnel Syndrome

Carpal Tunnel Syndrome happens when pressure is placed on the median nerve in the wrist.

📌 Symptoms

  • Tingling in fingers
  • Numbness or “pins and needles”
  • Wrist or hand pain
  • Weak grip strength

⚠️ Causes

  • Repetitive hand movements
  • Wrist strain or injury
  • Diabetes
  • Rheumatoid arthritis

🛠️ Treatment

  • Wrist splints (especially at night)
  • Anti-inflammatory medication
  • Ergonomic changes (workstation adjustments)
  • Surgery (in severe cases)

🧠 Key Idea

It is a nerve compression condition, often linked to repetitive strain or medical conditions.


🦠 Module 25: Cellulitis (Bacterial Skin Infection)

Cellulitis is a bacterial infection of the skin and deeper tissues.

🔴 Symptoms

  • Red, swollen skin
  • Warmth in affected area
  • Pain or tenderness
  • Rapid spreading infection

⚠️ Risk Factors

  • Cuts or broken skin
  • Skin conditions
  • Obesity
  • Lymphoedema
  • Weakened immune system or cancer treatment

💊 Treatment

  • Immediate antibiotics
  • Hospital care if severe
  • Monitoring to prevent spread to blood or deeper tissues

🚨 Key Warning

Cellulitis can become life-threatening if untreated.


🧒 Module 26: Chickenpox & Chlamydia (Infection Types)


🧒 Chickenpox (Viral Infection)

Chickenpox is a highly contagious viral infection caused by varicella-zoster virus.

📌 Symptoms

  • Itchy blister-like rash
  • Fever
  • Fatigue
  • Spots that scab over

🛡️ Prevention

  • Vaccination (highly effective)
  • Avoid contact with infected individuals

🧠 Key Idea

Usually mild in children, but can be more severe in adults or vulnerable people.


🧫 Chlamydia (Sexually Transmitted Infection)

Chlamydia is a common bacterial STI caused by Chlamydia trachomatis.

⚠️ Symptoms

  • Often no symptoms (silent infection)
  • Pain during urination
  • Unusual discharge
  • Pelvic or testicular pain

💊 Treatment

  • Antibiotics (simple and effective)
  • Early treatment prevents complications

🚨 If Untreated

  • Infertility
  • Pelvic inflammatory disease
  • Long-term reproductive damage

🧠 Key Idea

Chlamydia is highly treatable but often unnoticed, which is why testing is important.


📊 Summary Table (Modules 23–26)

ModuleConditionMain System
23CancerCellular / systemic disease
24Carpal TunnelNerve compression (wrist)
25CellulitisSkin bacterial infection
26Chickenpox & ChlamydiaViral + bacterial infections

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📚 TABLE OF CONTENTS (CHAPTER STRUCTURE)

  📘 MASTER BOOK STRUCTURE (A–Z TEXTBOOK) Front Section Title Page About This Book How to Use This Book (Easy Read explanation) Key Terms (G...