Preparing for a mastectomy involves weeks of planning across several areas: adjusting medications, setting up your home, arranging help, and getting your body and mind ready for recovery. Most preparation starts two to four weeks before your surgery date. Here’s what to do and when.
Two Weeks Before: Medications and Supplements
Some common over-the-counter medications and supplements increase bleeding risk during surgery, so you’ll need to stop them well in advance. Stop taking aspirin, ibuprofen, and naproxen at least 10 days before your procedure. Acetaminophen (Tylenol) is safe to continue. If you take a prescription blood thinner like warfarin, let your surgical team know as early as possible so they can advise you on when and how to stop.
Supplements need attention too. Stop vitamin E, fish oil, other omega-3 fatty acids, turmeric supplements, and garlic supplements two weeks before surgery. The small amount of vitamin E in a standard multivitamin is fine, and turmeric or garlic in food won’t cause problems. The concern is with concentrated supplement doses, which can interfere with normal blood clotting.
Eating Well Before Surgery
Your body will burn significantly more calories during wound healing, roughly 30 to 35 calories per kilogram of body weight per day. For a 150-pound person, that’s around 2,000 to 2,400 calories daily. The weeks before surgery are a good time to build up your nutritional reserves, especially protein.
Protein is the raw material your body uses to produce collagen, form new tissue, and power your immune response. Protein deficiency slows wound healing by delaying the shift from inflammation to actual tissue repair. Focus on protein-rich meals in the two weeks leading up to surgery: eggs, fish, poultry, beans, Greek yogurt, and nuts. Specific amino acids like those found in meat, dairy, and legumes play direct roles in collagen production and blood vessel formation at the wound site. Staying well hydrated matters too, with a general target of about one milliliter of fluid per calorie you consume (so roughly 8 to 10 cups a day for most people).
If you’ve been eating poorly or have lost weight during cancer treatment, mention this to your care team. For patients who are malnourished, a 7 to 10 day course of focused nutritional support before surgery is generally recommended.
Setting Up Your Home
After a mastectomy, you won’t be able to lift your arms above shoulder height for the first couple of weeks. Before surgery, move everything you’ll need regularly, including dishes, medications, snacks, phone chargers, and toiletries, down to counter level or lower.
A recliner is one of the most useful things you can have. Many people find it difficult to lie flat in the early days, and a recliner lets you sleep semi-upright comfortably. If you don’t have one, stack pillows on your bed to prop yourself up at an angle. Place a small side table next to wherever you’ll be resting so water, medications, your phone, and the TV remote are within easy reach. A small stepstool near your bed can help you get in and out without straining.
If you normally sleep on your side or stomach, start practicing sleeping on your back before surgery. You’ll need to sleep that way for a while after the procedure, and adjusting to it ahead of time makes recovery less frustrating.
What to Pack for the Hospital
Lifting your arms overhead will be painful or impossible right after surgery, so leave pullover tops at home. Pack soft, button-up or zip-front shirts and loose pants with elastic waistbands. Many companies make post-surgical tops with internal pockets designed to hold drainage bulbs, which can be worth the investment. A drain lanyard or belt also keeps the bulbs secure so they’re not dangling or pulling at your skin.
A post-surgical bra with soft fabric and drain pockets is another option your surgical team may recommend. Slip-on shoes are easier than anything with laces. Beyond clothing, bring your ID, insurance information, a phone charger, and any comfort items that help you relax.
Learning Drain Care Ahead of Time
Most mastectomy patients go home with one or more Jackson-Pratt drains, small bulbs connected to thin tubes that collect fluid from the surgical site. You or your caregiver will need to empty and measure the fluid, typically twice a day. Learning the process before surgery takes away some of the anxiety.
The basic routine works like this: pinch the tubing close to where it enters your skin so you don’t tug on the insertion site. With your other hand, slide your fingers down the tubing toward the bulb, pushing any small clots along. An alcohol wipe helps your fingers glide smoothly. Then open the stopper, pour the fluid into a measuring container, squeeze all the air out of the bulb, and re-plug the stopper while the bulb is still compressed. That compression creates gentle suction that keeps the drain working. You’ll record the amount and color of fluid each time, because your surgical team uses those numbers to decide when the drains can come out.
If you notice fluid leaking around the insertion site, milk the tubing again to clear any blockage. Watch for changes in the color or consistency of the fluid, and alert your care team if anything looks unusual.
Arranging Caregiver Help
You’ll need someone with you for at least the first 48 hours at home, and realistically, help is useful for the first week or longer. Line up your caregiver before surgery and make sure they understand what’s involved.
Their key tasks will include picking up prescriptions (ideally before you leave the hospital), tracking your medication schedule, and keeping common over-the-counter supplies on hand like acetaminophen and a mild stool softener, since constipation is common after anesthesia and pain medication. Your caregiver should know what medications you received in the hospital so there’s no confusion about timing or doses at home.
They’ll also help you get in and out of the shower. Most surgeons clear patients to shower once they’re home, but bathing in a tub is off limits until incisions heal. Incision areas can be gently washed but not scrubbed, then patted dry. Surgical glue or adhesive strips will fall away on their own. Your caregiver should watch for signs of infection: increasing redness, swelling, warmth, or a change in the color or smell of any drainage. Even if you feel steady enough to shower alone, having someone nearby is a good safety net.
The Night Before and Morning Of
Do not eat or drink anything after midnight the night before surgery. Any medications you take routinely in the morning can be taken with a small sip of water, but check with your surgical team about which ones to continue and which to skip. Have your hospital bag packed and your ride arranged the night before so the morning is as calm as possible.
Preparing Emotionally
The physical preparation gets the most attention, but the emotional side deserves just as much. A mastectomy changes how your body looks and feels, and that shift can affect your sense of identity, your comfort in social situations, and your intimate relationships. These reactions are normal, not a sign of weakness.
Several types of therapy have strong evidence for helping with body image concerns after breast surgery. Cognitive-behavioral therapy helps identify and reframe negative thought patterns, such as feelings of hopelessness or the belief that your body is now somehow lesser. Mindfulness and self-compassion approaches focus on reducing self-judgment and building kindness toward your changed body. Compassion-focused therapy specifically targets shame and self-criticism, which many women experience after mastectomy.
If you can, start working with a therapist or counselor before surgery rather than waiting until you’re deep in recovery. Even one or two sessions can give you tools for managing the emotional weight of the first days and weeks. Many cancer centers have psychologists or social workers on staff who specialize in exactly this. Support groups, whether in person or online, also offer something therapy alone doesn’t: the experience of being understood by people who have been through it.
Fear of cancer recurrence is another common source of anxiety around surgery. Techniques that address worry, rumination, and attentional bias (the tendency to fixate on potential threats) have been shown to reduce that fear to manageable levels. Naming these patterns for what they are, rather than letting them run in the background, gives you more control over your emotional experience during a time that can feel profoundly uncertain.