Set the scene for a shy, heavy-bodied snake
Choose a warm room and a quiet moment, ideally a few days after a meal rather than the day after feeding, when handling is less likely to cause a regurgitation. Let the ball python uncurl at its own pace on a clean towel over a table, and work by touch as much as sight, because this species often keeps its head tucked. A quick check is not a wrestling match: if the snake balls tightly and refuses to uncoil, note that as handling stress, postpone the handling parts, and do the visual parts, breathing, eyes, shed history, while it rests in a clear tub. You are building a weekly baseline, not winning a contest.
Head, eyes, mouth, and breathing
Start at the head. Outside the blue phase of a shed, the eyes should be clear and glossy, with no retained cap giving a wrinkled, dented look. The heat pits along the lip should be clean and open. Watch the mouth line from the side: it should close evenly, with no gaping, bubbles, or strands of mucus when the snake breathes, and breathing itself should be silent, without clicks or wheezes as the body expands. Look closely at the chin folds and around the eyes for snake mites, which appear as tiny dark or pale specks that move; finding them early, before the snake starts soaking constantly, saves a long eradication campaign.
Body, scales, and muscle tone along the full length
Let the snake glide through your loosely closed hands so every section passes your fingers. Healthy ball python scales are smooth and iridescent, lying flat without lifted edges, crusty patches, discoloured belly scales, or soft blistered areas. The body in cross-section should feel rounded and muscular, neither squishy and flabby nor ridged along the spine. Pause on any lump, swelling, tick attached near the eyes or vent, or spot where the snake flinches each time it passes through your grip. Check the tail tip for retained shed rings, which can tighten over time, and confirm the shed skin from the last cycle, if you kept it, is complete with both eye caps visible in the head portion.
Vent, weight, and the record of sheds and meals
Turn the final third gently so you can see the vent: it should sit flat and clean, without swelling, redness, crusted residue, or protruding tissue. Weigh the snake on a kitchen scale inside a tub if it tolerates it, and write the figure down beside the date, the last meal taken or refused, and the last shed quality. For ball pythons, that trio, weight, feeding, shedding, is the health story in miniature, and a slow drift in any one of them usually appears in your notes before it appears dramatically in the enclosure. A snake gaining steadily, feeding on schedule, and shedding in one piece is passing its checks even on weeks it hides all day.
When the home check sends you to the vet
Book an exotics vet if your check finds wheezing or mucus, a mouth that will not close evenly, mites you cannot clear, retained eye caps after the shed completes, a vent problem, or weight falling across two or three checks while meals are refused. Treat burns, wounds, and a prolapse as same-day problems. Bring the numbers with you, since a vet can do far more with a dated weight and shed log than with a general impression. Saving those logs in KinsLe Pet Passport, as this python's portable record set, means the history is complete whenever an appointment is needed.