There are many different types of chemotherapy, and people also receive different strengths of chemotherapy depending on their age, mode of treatment and outcomes. Although hair loss is a common side effect of chemo, not all people will experience it. And some may experience different kinds of hair loss (for example only in their eyebrows), while others may experience the full extent of hair loss.
Hair loss can be difficult to predict, so it is always best to prepare for the fact that you may lose your hair, rather than finding yourself 'caught out' if it does occur. For example, protecting your hair with strengthening hair loss treatments can help to prevent some hair falling out from breakage if your hair texture becomes dry or brittle.