What is Cervical Cancer?
Cancer is a condition in which the cells in the body multiply uncontrollably, producing tumours that can spread from its originating organ to nearby or distant structures. Even if cancer spreads, we still name it based on the organ where the tumour first appeared.
Hence, cervical cancer starts in the cervix, the structure that connects the vagina (birth canal) to the uterus (womb).
All women may develop cervical cancer, but some are more at risk than others depending on several factors like their genetics and whether or not they have been vaccinated and practised safe sex.
In Malaysia, cervical cancer is the 2nd most common cancer in women, after breast cancer. The good news is, the high mortality can be reduced through prevention, early detection and effective screenings.
What are the Symptoms of Cervical Cancer?
Reports say that the most common signs and symptoms of cervical cancer are as follows:
- Unusual bleeding: bleeding in between menstruation, after sex, or after menopause.
- Prolonged or heavier than usual menstrual periods.
- Bleeding after a vaginal exam.
- Pain during intercourse.
- Persistent and unexplained lower back pain.
During dysplasia or the development of cancer cells (also referred to as pre-cancer), women typically do not experience any symptoms. There may be some early-stage cancer indicators and more severe signs in the late or metastatic stages. For instance, a woman may develop watery or heavy vaginal discharge with a foul odour during the advanced stages of cervical cancer.
However, please keep in mind that the symptoms we listed above could also point to other reproductive health concerns. For this reason, making an appointment with the doctor is crucial.
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What Causes Cervical Cancer?
In general, cancer occurs when normal cells develop mutations in their deoxyribonucleic acid or DNA – the long strands of chemicals that contain instructions on how we grow and develop.
DNA strands have small sections or segments called genes; they function to either code proteins or determine our traits. For example, we have genes that determine our eye colour, hair growth, height, and complexion.
All Cancers Start With Gene Mutations
Interestingly, we also have “proto-oncogenes” and “tumour suppressor” genes. Proto-oncogenes are genes that help our cells grow, while tumour suppressor genes stop unnecessary cell growth.
The American Cancer Society compared the cell into a car and the proto-oncogene to a gas pedal, which controls how fast the car is going. In contrast, they explained that the tumour suppressor gene acts like a brake pedal, the one that stops the car when it is going too fast.
All cancers start with a mutation in these genes. Mutation is the term we use to describe that the genes have sustained changes that turned them into bad copies of the original, normal genes.
Case in point, a mutated proto-oncogene can become permanently turned on (oncogene), resulting in uncontrollable cell growth. There is also a chance that the tumour suppressor gene becomes deactivated, removing the body’s mechanism to stop excessive cell growth.
How Cervical Cancer Starts
At this point, it is pretty clear that all cancers start with mutations. The only thing left to discuss is what triggers this mutation in cervical cancer.
It is not easy to pinpoint the specific triggers of mutation in cancer: it may be a mixture of heredity and lifestyle factors. For instance, reports say that 5 to 10% of breast cancer cases are associated with inherited gene mutations. Meanwhile, experts say that the leading cause of lung cancer is smoking tobacco.
In the case of cervical cancer, the US Center for Disease Control (CDC) stated that long-lasting infection with specific types of human papillomavirus is the main cause of cancer of the cervix.
Please keep in mind that not all women who contract HPV infections will develop cervical cancer.
Cervical Cancer Risk Factors
There are definitely certain factors that increase a woman’s risk of developing cervical cancer. These risk factors include:
- Cigarette smoking
- Having sexual intercourse at a young age
- A previous HPV infection
- Having multiple sexual partners
- A history of sexually-transmitted infection like gonorrhoea or chlamydia
- Weakened immunity
How to Prevent Cervical Cancer
The good news about cervical cancer is that more than 90% of its cases are vaccine-preventable. Furthermore, the earlier the diagnosis happens, the better the treatment outcomes will be.
Facts about Cervical Cancer or HPV Vaccine
One way to significantly reduce the risk of developing cervical cancer is through HPV vaccination.
HPV vaccines protect women from certain types of human papillomaviruses that may trigger cervical cancer. In Malaysia, there are three approved HPV vaccines available: Cervarix, Gardasil 4, and Gardasil 9, with Gardasil 9 offering protection from 7 types of HPVs.
Below are some facts about HPV vaccination in Malaysia:
- Depending on the type of vaccine, females aged 9 to 26 years old can get vaccinated. Women aged 27 above should talk to their doctor if they want to receive the shot.
- The vaccine is most effective before a woman gets exposed to the HPV virus, which is usually transmitted through sexual activity.
- The brands mentioned are proven safe and effective; they will not cause an HPV infection.
- As with all other vaccines, the HPV vaccine cannot offer 100% protection; it is also not a substitute for cervical cancer screening.
- The dose one receives may vary. Case in point, if a child gets the first dose at or before the age of 14, she may only require 2 doses. On the other hand, a girl who gets the first dose at or after 15 may need 3 doses.
If you are not vaccinated yet, you can get it done at Nur Sejahtera Clinics, LPPKN and private hospitals and clinics. The price of HPV vaccines varies depending on where you get it done, the brand, and whether or not you are paying per dose or choosing a package. A dose can cost somewhere around RM180 to RM190; a package with several doses can cost about RM1600 to RM2500.
Care At Every Stage
Facts about Screening for Cervical Cancer
Females aged 9 to 26 years old are encouraged to receive their HPV vaccine shots, but they should still go for routine cervical cancer screening. The National Cancer Society Malaysia recommends a Pap test once every 3 years after you turn 20.
This test checks for the presence of HPVs in women. Remember that vaccines only offer protection from specific strains of the virus; hence an infection could still happen even after getting vaccinated.
HPV testing is recommended once every 5 years in women aged 30 and above who have already had sexual intercourse. Women often schedule the test 14 days after the first day of their menstrual period.
This test checks for abnormal cells that may potentially become cancerous. In other words, it helps to detect cervical cancer early, paving the way for immediate intervention. Like HPV testing, it is scheduled 14 days after the first day of menstruation. However, women need to have a pap smear test done once every 3 years.
Please take note that the frequency by which you need to undergo the test varies depending on the previous results. Should you get abnormal results, the doctor may recommend repeat or more frequent procedures.
Cervical Cancer Treatment
In the event that someone is diagnosed with cervical cancer, the treatment will depend on the stage of cervical cancer. When detected at the precancerous stage, there are two primary treatment strategies:
- Ablation Techniques: This involves destroying the abnormal cells through heating or freezing.
- Excision Techniques: This involves cutting and removing the abnormal cells.
Another option is the Loop Electro-Excision Procedure (LEEP), which uses high-energy wire to remove diseased portions of the cervix, leaving behind only the healthy tissues.
For cervical cancer Stages I through IV, treatment becomes more complicated. Strategies depend on the number and size of the tumour and its spread to nearby nodes and other parts of the body.
To put things into perspective, the doctor may decide to treat a small tumour (usually Stage I) with surgery that removes the tumour and the nearby tissues. Cervical cancer that has spread beyond the cervix may require a combination of radiotherapy, chemotherapy, and removal of the cervix or uterus.
Are You Worried About Cervical Cancer?
Here are some key takeaways about cervical cancer that you should keep in mind:
- Most cervical cancer cases are vaccine-preventable; however, vaccine shots should not replace regular screening tests.
- Females aged 9 to 26 years old are highly encouraged to get the HPV vaccine. Women aged 27 and up may still get the vaccine as per the advice of their physician.
- The cost of vaccines for cervical cancer depends on where you plan to get it, the brand, and how many doses you need.
If you think you may be experiencing symptoms of cervical cancer or are considering whether you should get vaccinated, consult a doctor immediately.
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- Basic information about cervical cancer. (2021, February 16). Centers for Disease Control and Prevention. Retrieved February 21, 2021, from https://www.cdc.gov/cancer/cervical/basic_info/index.htm#:~:text=When%20cancer%20starts%20in%20the,in%20women%20over%20age%2030
- HPV and HPV Vaccination FAQs. (n.d.). [online] . Available at: https://cancer.org.my/wp-content/uploads/2019/11/HPV-Vaccination-FAQs.pdf [Accessed 4 Mar. 2021].
- Breast cancer – Symptoms and causes. (2019, November 22). Mayo Clinic. Retrieved February 21, 2021, from https://www.mayoclinic.org/diseases-conditions/breast-cancer/symptoms-causes/syc-20352470
- The HPV vaccine and cervical screening: How many tests do you need? (2018, January 23). Cancer Research UK – Science blog. Retrieved February 21, 2021, from https://scienceblog.cancerresearchuk.org/2017/11/10/the-hpv-vaccine-and-cervical-screening-how-many-tests-do-you-need/
- HPV vaccine information for young women. (2019, January 11). Retrieved February 21, 2021, from https://www.cdc.gov/std/hpv/stdfact-hpv-vaccine-young-women.htm
- Lung cancer causes | Lung cancer in non-smokers. (n.d.). American Cancer Society | Information and Resources about for Cancer: Breast, Colon, Lung, Prostate, Skin. Retrieved February 21, 2021, from https://www.cancer.org/cancer/lung-cancer/causes-risks-prevention/what-causes.html#:~:text=Smoking%20tobacco%20is%20by%20far,often%20interacts%20with%20other%20factors
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