Cancer
What is
cancer?
Cancer is a disease where
abnormal cells grow and
spread in the body.
Normally, cells grow and
die in a controlled way,
but cancer cells grow
uncontrollably.
Types of cancer
There are many types of
cancer, such as:
Breast Cancer
Lung Cancer
Skin Cancer
Leukemia (blood cancer)
Each type affects different
parts of the body.
How does
cancer start?
Cancer starts when cells
in the body begin to
change and grow
abnormally.
These cells divide too
quickly and form a lump
or mass called a tumor.
How cancer
spreads?
Cancer can spread to
other parts of the body
through the blood or
lymph system. This is
called metastasis.
Causes of
cancer
Cancer can be caused by
various factors, including:
Smoking
Poor diet
Exposure to chemicals or
radiation
Family history (genetics)
Age
Warning signs
of cancer
Some common signs
include:
Unexplained weight loss
Changes in skin
Persistent cough or
trouble breathing
Blood in urine
Risk factors of
c a n ce r
Some factors increase the
risk of getting cancer:
Smoking
Alcohol use
Being overweight or
inactive
Family history of cancer
Older age
Preventing
cancer
Ways to lower the risk of
cancer:
Eat a healthy diet with
lots of fruits and
vegetables.
Exercise regularly.
Avoid tobacco and limit
alcohol.
Protect your skin from the
sun.
How is Cancer
Diagnosed?
Doctors use tests like:
Blood tests
Biopsies (taking a sample
of tissue)
Imaging tests (like X-rays,
MRIs, CT scans)
Stages of
Cancer
Cancer is often described
in stages:
Stage 1: Cancer is small
and localized.
Stage 2 & 3: Cancer
grows and may spread to
nearby tissues.
Stage 4: Cancer has
spread to distant parts of
the body
Treatments of
cancer
Common cancer
treatments include:
Surgery
Chemotherapy
Radiation therapy
Immunotherapy
What is
chemotherapy?
Chemotherapy uses
strong drugs to kill cancer
cells or stop their growth.
It may cause side effects
like nausea, hair loss, and
tiredness.
What is
radiation
therapy?
Radiation uses powerful
rays (like X-rays) to kill
cancer cells.
It can be given externally
or internally.
The role of
surgery in
cancer
Surgery can be used to
remove tumors from the
body.
It is most effective when
cancer has not spread too
far.
Advances in
Cancer
Research
Scientists are always
working to find better
treatments and cures for
cancer.
New treatments like gene
therapy and targeted
therapy are showing
promise.
The
Importance of
Early Detection
Early detection of cancer
increases the chances of
successful treatment.
Conclusion
Cancer is a serious
disease, but early
detection and advances in
treatment have helped
many people survive.
Healthy habits and
regular check-ups can
help lower the risk of
developing cancer.
Bibliography
Website:
www.cancer.gov
www.cancer.org
