1️⃣ Surgery

Removes tumors or affected tissues. Surgery is often the first or main treatment for many solid cancers (e.g., breast, colon, skin, kidney).

Common Side Effects

• Pain or soreness at the surgical site
• Bleeding, infection, or swelling
• Fatigue and limited mobility during recovery
• Changes in body image or function (e.g., mastectomy)

Most surgical side effects improve as the body heals. Rehabilitation and counseling can help recovery.

2️⃣ Radiation Therapy

Uses high-energy rays (like X-rays or protons) to destroy cancer cells. Can be external-beam or internal (brachytherapy).

Common Side Effects

• Fatigue (builds up over time)
• Skin changes in treated area (redness, dryness)
• Hair loss in the radiation field
• Difficulty swallowing, bowel or bladder irritation (site-dependent)

Side effects are localized; modern techniques protect healthy tissue.

3️⃣ Chemotherapy

Uses anti-cancer drugs that circulate through the bloodstream to destroy rapidly dividing cells.

Common Side Effects

• Fatigue, nausea, vomiting
• Hair loss
• Low blood counts (infection, anemia, bleeding risk)
• Mouth sores, appetite changes
• Numbness or tingling (neuropathy)

Most chemo side effects are temporary. Supportive care (anti-nausea meds, growth factors) can help.

4️⃣ Immunotherapy

Boosts or restores the body’s natural defenses to fight cancer (e.g., checkpoint inhibitors, CAR T-cell therapy, cytokines, vaccines).

Common Side Effects

• Flu-like symptoms (fever, fatigue, body aches)
• Skin rash or itching
• Autoimmune inflammation (thyroid, lungs, liver, colon)

Prompt reporting of new symptoms is vital—immune-related side effects can be serious but are often treatable with steroids.

5️⃣ Targeted Therapy

Attacks specific genetic mutations or proteins that drive cancer growth (e.g., EGFR, HER2, BRAF, ALK inhibitors).

Common Side Effects

• Skin rash or dryness
• High blood pressure
• Diarrhea or liver enzyme changes
• Fatigue

Targeted drugs often have fewer side effects than chemo but require monitoring for organ effects.

6️⃣ Hormone Therapy

Blocks or lowers hormones (e.g., estrogen, testosterone) that fuel certain cancers like breast or prostate.

Common Side Effects

• Hot flashes, mood changes
• Weight gain or loss of muscle mass
• Bone thinning (osteoporosis)
• Sexual side effects

Exercise, diet, and medication (e.g., bone protectors) can help manage these effects.

7️⃣ Stem Cell / Bone Marrow Transplant

Replaces diseased marrow with healthy cells after high-dose chemo/radiation (used mainly for leukemia, lymphoma, myeloma).

Common Side Effects

• Infection risk (low immunity)
• Graft-versus-host disease (GVHD)
• Fatigue, mouth sores, organ effects

Recovery takes months. Close follow-up and preventive medications are essential.

8️⃣ Precision Medicine & Clinical Trials

Use advanced testing to match treatments to a tumor’s genetic profile. Clinical trials offer access to cutting-edge therapies under careful monitoring.

Benefits

• Access to new drugs and combinations
• Contributes to research that helps others

Ask your oncologist if a clinical trial fits your diagnosis and stage.

Managing Side Effects

• Nutrition: small, frequent, high-protein meals; stay hydrated
• Fatigue: rest, light exercise, manage anemia or thyroid issues
• Emotional health: counseling, support groups, spiritual care
• Pain & symptom management: medications, relaxation, palliative care specialists
• Long-term monitoring: track heart, bone, fertility, and mental health after treatment

You’re not alone. Cancer care teams include nurses, nutritionists, social workers, and mental-health providers to support you throughout treatment.