Types of Cancer in Human Body: Common Cancer Types, Symptoms, Diagnosis, and Treatment

Introduction

This article provides a broad overview of the different types of cancer that can occur in the human body, classified both by cell origin and by organ. For detailed guidance on specific cancers, see the related articles listed at the end.

Cancer is not a single disease. It is a broad group of diseases in which abnormal cells grow uncontrollably and may invade nearby tissues or spread to other parts of the body. There are many types of cancer in the human body, and each type can behave differently.

India Context — Cancer Burden

According to ICMR-NCRP 2022 data, India reports approximately 1.4 million new cancer cases annually (ICMR-NCRP 2022 estimate). The most common cancers in India differ from those in Western countries. In India, the leading cancers in men are oral and oropharyngeal cancer, lung cancer, stomach cancer, colorectal cancer, and prostate cancer. In women, the leading cancers are breast cancer, cervical cancer, colorectal cancer, ovarian cancer, and uterine cancer.

Oral cancer has a disproportionately high burden in India due to widespread tobacco use. Cervical cancer, which is largely preventable, remains the second most common cancer in Indian women due to gaps in HPV vaccination coverage and cervical screening programs.

The NCG India provides guidelines for the management of all major cancer types encountered in India, updated regularly to align with international standards while accounting for India-specific epidemiology, drug availability, and resource settings.

Source: ICMR-NCRP Annual Report 2022; NCG India Cancer Management Guidelines (version current as of 2024); ICMR oral cancer and cervical cancer awareness data.

Main Types of Cancer by Cell or Tissue Origin

1. Carcinoma

Carcinoma is the most common broad category of cancer. It begins in epithelial cells, which cover the skin and line internal organs and glands.

Carcinomas may be further classified based on the type of epithelial cell involved. For example, adenocarcinoma begins in gland-forming cells, while squamous cell carcinoma begins in flat cells that line surfaces such as skin, mouth, throat, lungs, cervix, or esophagus.

2. Sarcoma

Sarcoma is a cancer that begins in connective or supportive tissues of the body — bone, muscle, fat, cartilage, blood vessels, nerves, and deep soft tissues. A growing lump in the arm, leg, abdomen, or trunk should be evaluated, especially if deep, increasing in size, painful, or larger than expected.

3. Leukemia

Leukemia is a type of blood cancer that usually begins in the bone marrow. Unlike many cancers, leukemia usually does not form a solid tumor. It affects the blood and bone marrow and can interfere with the production of healthy blood cells.

Because symptoms can be vague, leukemia may sometimes be mistaken for infection, anemia, or general weakness. Blood tests are often an important first step in evaluation.

4. Lymphoma

Lymphoma is cancer of the lymphatic system. Common symptoms include painless swelling of lymph nodes in the neck, armpit, or groin, fever, night sweats, unexplained weight loss, fatigue, itching, and loss of appetite. Swollen lymph nodes that are painless, hard, growing, or present for several weeks should be evaluated.

5. Multiple Myeloma

Symptoms may include bone pain, fractures, tiredness, frequent infections, increased thirst, constipation, kidney problems, or high calcium levels. Some people may be diagnosed after blood tests show anemia, kidney changes, or abnormal proteins.

6. Melanoma

Melanoma begins in melanocytes, the cells that produce pigment in the skin. The ABCDE rule can help identify suspicious moles:

7. Brain and Spinal Cord Tumors

Brain and spinal cord tumors may be benign or malignant. Even benign brain tumors can be serious because they may press on important brain structures. Symptoms include persistent or worsening headache, seizures, vomiting with headache, weakness in an arm or leg, vision changes, speech difficulty, balance problems, and drowsiness.

Types of Cancer by Body Organ or System

Organ-Specific Cancers: Common Symptoms

Breast Cancer

Symptoms may include a lump in the breast or underarm, skin dimpling, nipple discharge, nipple inversion, or redness.

Lung Cancer

Symptoms include persistent cough, coughing blood, chest pain, shortness of breath, hoarseness, weight loss, and repeated chest infections. Smoking is the main risk factor but non-smokers can also develop lung cancer.

Colorectal Cancer

Symptoms include blood in stool, change in bowel habits, abdominal pain, anemia, narrow stools, and unexplained weight loss. Screening from age 45 is broadly recommended.

Oral Cancer

Symptoms include a non-healing mouth ulcer, white or red patch, lump in the mouth or neck, difficulty swallowing, and hoarseness. Tobacco and alcohol use are major risk factors. Seek evaluation from a dentist, ENT specialist, or oral medicine specialist for any non-healing ulcer lasting more than three weeks.

Cervical Cancer

Symptoms include bleeding between periods, bleeding after intercourse, unusual discharge, and pelvic pain. Pap smear and HPV test / VIA can detect precancerous changes early.

Liver Cancer

Risk factors include hepatitis B/C, cirrhosis, and heavy alcohol use. Symptoms include abdominal pain, swelling, jaundice, weight loss, and tiredness. High-risk individuals may need regular surveillance.

Pancreatic Cancer

Often causes no symptoms early. Later symptoms include jaundice, abdominal pain radiating to the back, unexplained weight loss, pale stools, and dark urine.

Screening and Early Detection

India Context — Screening Priorities

NCG India and ICMR recommend: cervical cancer screening using Pap smear, HPV test, or VIA for women aged 30–65; CBE and mammography for women from age 40–45; oral visual examination for tobacco and alcohol users from age 30; and colorectal cancer screening from age 45–50 for average-risk adults.

For cervical cancer, India has an indigenously developed HPV vaccine — Cervavac (Serum Institute of India, DCGI-approved 2022). HPV vaccination is recommended before exposure to HPV, commonly in early adolescence. Exact age eligibility may vary by government programme or state and should be confirmed with the treating doctor or public health centre.

Source: NCG India Cancer Screening Guidelines (version current as of 2024); ICMR-NCRP Annual Report 2022; Cervavac DCGI approval documentation.

Screening Guidance

India public-health priority screening covers oral, breast, and cervical cancers as the three national priorities. Individual hospital-based screening (such as at Apollo Hospitals) is based on age, family history, symptoms, and doctor advice, and may differ from public-programme schedules. International guidelines (ACS, USPSTF) are cited as reference and are not direct India-wide recommendations.

Myths and Facts about Cancer Types

FAQs on Types of Cancer in Human Body

1. What are the main types of cancer in the human body?

The main types include carcinoma, sarcoma, leukemia, lymphoma, multiple myeloma, melanoma, and brain or spinal cord tumors. Cancer can also be classified by the organ where it starts, such as breast cancer, lung cancer, colorectal cancer, prostate cancer, or cervical cancer.

2. What is the difference between carcinoma and sarcoma?

Carcinoma begins in epithelial cells, which line organs, glands, and body surfaces. Sarcoma begins in connective tissues such as bone, muscle, fat, cartilage, or blood vessels. Carcinomas are much more common than sarcomas.

Conclusion

There are many types of cancer in the human body. Some are classified by the cells they come from - carcinoma, sarcoma, leukemia, lymphoma, myeloma, melanoma, and brain or spinal cord tumors. Others are described by the organ where they start — breast, lung, colorectal, prostate, cervical, liver, or skin cancer.

A persistent lump, unexplained weight loss, unusual bleeding, non-healing wound, long-lasting cough, bowel or bladder changes, or unexplained fatigue should not be ignored. Timely consultation, appropriate screening, and early diagnosis can make a meaningful difference in cancer care.

Medical Disclaimer: This article is for general health awareness and does not replace consultation with a qualified oncologist or doctor. If you have any concerns about your health, please consult an Apollo Hospitals specialist.