Banner MD Anderson Cancer Center is urging cancer patients to take extra care in staying safe during the hottest parts of summer.

The center's team of experts is sharing some key safety tips for patients and their families to navigate the extreme temperatures and still enjoy the summer.

Dr. Arti Sangave, a radiation oncologist at Banner MD Anderson in Gilbert, said she wants cancer patients to understand just how critical hydration is, especially during chemotherapy and radiation.

She says dehydration is a side effect of cancer, as well as from treatment itself — so patients need to take extra care in ensuring they’re getting enough water throughout the day for their body to function correctly.

“By the time you might be thirsty for water, you’re already dehydrated," Sangave said. "So it’s critical to keep hydrated consistently throughout the day. If you’re not a fan of plain water, try adding some chilled fruit so you’re motivated to keep your fluid intake up with some healthy nutrients.”

Cancer patients need to be vigilant in limiting sun exposure, as certain forms of chemotherapy and radiation therapy can make cancer patients more sensitive to sunlight.

The particular risk depends on the type of cancer a patient has and the treatments the patient is receiving, said Dr. Molly Decker, a physician executive at Banner MD Anderson Cancer Center at Banner North Colorado Medical Center and Banner MD Anderson Cancer Center at Banner McKee Medical Center.

“It is very important for cancer patients to wear a wide-brimmed hat if they have lost their hair during chemotherapy, or are receiving radiation therapy for head and neck cancer, to protect their scalp — that is, if they must be in the sun,” Decker said. “However, if possible, try to avoid being in the sun between 10 a.m. and 4 p.m., the hottest parts of the day. If it’s necessary to be outside, use SPF 30-plus sunscreen and lip balm, wear sunglasses, and cover up with UPF clothing.”

Sangave also said patients in treatment for cancer should double-check to see if swimming is safe.

“Some treatments and associated side effects can make people more sensitive to the chemicals used in pool water — and natural bodies of water can run the risk of infection due to the bacteria and other microorganisms present," Sangave said. "But each patient’s cancer is different, so be sure check with your oncologist."

Finally, it’s important for everyone to understand the warning signs of heat exhaustion and heat stroke — but it’s particularly important for cancer patients and their families to understand, since the side effects of cancer and cancer treatment can cause dehydration. Banner Health offers in-depth explanations of both heat-related illnesses and how to avoid them.

“If you’re feeling more sensitive to the heat, try to wear breathable fabrics, and keep ice packs and cold water nearby or in the car," Decker said. "You might also want to consider replacing a wig with a hat or cotton scarf for better airflow.

"Cancer patients can absolutely enjoy summertime — and they should. We just want to be sure they’re preparing for the day as safely for their health as possible.”